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UNIVERSITEIT GENT
FACULTEIT ECONOMIE EN BEDRIJFSKUNDE
ACADEMIEJAAR 2014 – 2015
To blog or not to blog?
An exploratory research about the impact
of corporate versus sponsored consumer
luxury fashion blogs on the brand attitude,
product attitude and purchase intention.
Masterproef voorgedragen tot het bekomen van de graad van
Master of Science in de Toegepaste Economische Wetenschappen
Laura Barber
onder leiding van
Prof. Liselot Hudders
I
II
Permission
Ondergetekende verklaart dat de inhoud van deze masterproef mag geraadpleegd en/of gereproduceerd worden, mits bronvermelding. Laura Barber
III
Preface
I would like to thank a few people who helped create this master thesis.
First of all, many thanks to my supervisor, Liselot Hudders, for her advice and efforts in helping me
write this dissertation. She endured my many visits and e-mails, and offered a quick and helpful
response to my questions. I would also like to thank her for giving me the space to come up with my
own subject and ideas, which made the writing and research experience pleasant.
Furthermore, I would like to thank every member of my family and friends for helping me bounce of
some ideas in the process, giving their support and rereading the thesis several times.
Of course, many thanks to the faculty of Economics and Business Administration in providing the
scientific literature, books and knowledge. Because of these, I was able to do a thorough literature
study and write the dissertation, in proper English.
And finally, I am thankful for the respondents who participated in the pretests and experiment, who
gave me the data to work with in the first place.
IV
Inhoud
Permission ............................................................................................................................................................... II
Preface ................................................................................................................................................................... III
List of abbreviations ............................................................................................................................................... IV
List of tables ............................................................................................................................................................ V
List of figures .......................................................................................................................................................... VI
1. Abstract .......................................................................................................................................................... 1
2. Introduction.................................................................................................................................................... 2
3. Theoretical background and Hypothesis development ................................................................................. 4
3.1 Social media and Blogs in a luxury fashion environment ............................................................................ 4
3.2 Effectiveness Corporate and Sponsored Luxury Fashion Blogs ................................................................... 7
3.2.1 Sponsored blog ................................................................................................................................... 8
3.2.2 Corporate blog .................................................................................................................................... 9
3.2.3 Effect Blogs on Brand attitude, Product attitude and Purchase intention ......................................... 9
3.3 The Mediating impact of Source Credibility ............................................................................................. 12
3.4 The Mediating impact of the activation of Advertising Literacy ............................................................... 14
3.5 Use of Advertising Disclosures................................................................................................................... 15
3.6 The Moderating impact of Brand Awareness ............................................................................................ 17
4. Empirical research ........................................................................................................................................ 18
4.1 Overview of the hypotheses ...................................................................................................................... 18
4.2 Methods .................................................................................................................................................... 19
4.2.1 Design ............................................................................................................................................... 19
4.2.2 Stimuli ............................................................................................................................................... 19
4.2.3 Respondents ..................................................................................................................................... 21
4.2.4 Procedure ......................................................................................................................................... 22
4.2.5 Measures .......................................................................................................................................... 24
4.3 Results ....................................................................................................................................................... 27
4.3.1 Manipulation check .......................................................................................................................... 27
4.3.2 Testing the hypotheses ..................................................................................................................... 28
5. Discussion and conclusion ............................................................................................................................ 46
5.1 Discussion of the results ............................................................................................................................ 46
5.2 Conclusion ................................................................................................................................................. 47
6. Theoretical and managerial implications ..................................................................................................... 48
7. Limitations and further research .................................................................................................................. 49
References ........................................................................................................................................................... VIII
IV
List of abbreviations
eWOM electronic Word of Mouth
UGC User-Generated-Content
ROPO Research Online Purchase Offline
PR Public Relations
PSI Para-Social Interaction
SponsoredPlus Sponsored Blog with Advertising Disclosure
SponsoredMinus Sponsored Blog without Advertising Disclosure
Corporate Corporate Blog
V
List of tables
Table 1. Respondents per blog condition 21
Table 2. Correlation table 28
Table 3. One Sample T-test SponsoredMinus vs Corporate 29
Table 4. One Sample T-test SponsoredPlus vs Corporate 30
Table 5. One Sample T-test SponsoredPlus vs SponsoredMinus 30
Table 6. Mediation analysis of Credibility 33
Table 7. Mediation analysis of Advertising literacy (AdverLi1) 36
Table 8. Mediation analysis of Advertising literacy (AdverLi2) 37
Table 9. Mediation analysis of Advertising literacy (AdverLi3) 38
Table 10. Covariates analysis: interaction effect 42
Table 11. One-way ANOVA vs Multivariate ANCOVA 43
Table 12. Covariate Involvement 43
Table 13. Direct effect Blog type on covariates 43
Table 14. Moderation Blog12 44
Table 15. Moderation Blog02 45
Table 16. Moderation Blog01 45
VI
List of figures
Figure 1. Research design 23
Figure 2. Effects on Brand attitude, Product attitude, Purchase Intention 31
Figure 3. Mediation analysis: Blog type on Credibility 32
Figure 4. Mediation analysis: Blog type on Advertising Literacy 35
VII
List of attachments
Attachment 1. Stimuli Bijlage 1.1
Attachment 2. Research questionnaire Bijlage 2.1
1
1. Abstract
Blogs worden alsmaar meer aanzien als een nuttige tool in de marketing strategie. Heel wat recente
studies onderzoeken het gebruik, de karakteristieken en de effectiviteit van blogs. De research naar
gesponsorde en bedrijfsblogs zijn daarin echter ondervertegenwoordigd. Daarnaast ligt weinig focus op
de mode industrie, hoewel het een grote hoeveelheid bloggers telt. Het doel van deze studie is
analyseren of deze verschillende types blogs (gesponsorde blogs met of zonder bekendmaking van de
sponsoring, en bedrijfsblog) de merkattitude, productattitude en aankoopintentie beïnvloeden. Verder
wordt ook de impact van credibiliteit en de activatie van reclamewijsheid op de relatie tussen de blog
types en effectiviteit onderzocht. Als laatste wordt ook de modererende invloed van naamsbekendheid
(gekend/niet gekend) bestudeerd.
In het onderzoek wordt een between-subjects design gebruikt met drie blog types als condities. De
resultaten uit de enquête, bevraagd over 95 respondenten, indiceren enkel een marginaal significant
verschil tussen gesponsorde blogs zonder bekendmaking van de sponsoring en de bedrijfsblog op
merkattitude en aankoopintentie. Tussen de gesponsorde blog met bekendmaking van sponsoring en de
bedrijfsblog blijkt enkel een marginaal significant verschil in product attitude, maar in de verkeerde
richting ten opzichte van de hypothese. In de vergelijking van de twee gesponsorde blogs komt geen
enkele afhankelijke variabele naar voor als significant. Hoewel uit de uitkomst van het onderzoek geen
sluitende conclusie kan getrokken worden, kan men eruit opmaken dat de drie type blogs een
interessante online aanvulling kunnen zijn binnen een consistente marketing strategie van een luxe
merk. Bedrijven kunnen daarbij zowel blogs sponsoren, als zelf een blog creëren, met bijna dezelfde
resultaten. De analyse toont geen mediërend effect van credibiliteit of reclamewijsheid, wat mogelijks
verantwoord kan worden door de grote gelijkenis tussen de blog types. Ook de moderator
naamsbekendheid blijkt geen invloed te hebben; een mogelijk verklaring hiervoor is het gebrek aan
hoofdeffect tussen de blog types en merkattitude, productattitude en aankoopintentie.
2
2. Introduction
The luxury fashion industry encountered several obstacles in light of the economic crisis of 2008 (Mohr,
2013). Plummeting sales (Gereffi and Frederick, 2010) and the necessity of a significant ROI of marketing
decisions, made radical changes in the strategy crucial to attract customers (Fisher, 2009). Another
challenge was the entry of many new luxury fashion labels. To overcome all of these challenges, offering
superior service using different communication tools became necessary. (Jiyoung Kim, and Ko, 2010) All
the while, the target audience still had to receive the luxury service they were accustomed to. The
solution was a compelling and straightforward communication to persuade its customers into buying:
social media. (Chow, 2013)
Integrating social media as an extension of the marketing mix (Samuel-Camps, and Haldan-Jones, 2013)
not only provides the potential of acquiring new customers, but also the retention of the existing ones
(Jiyoung Kim, and Ko, 2010). To both, building a strong brand is essential. Contriving a successful social
media campaign should enable consumers to develop a profounder connection to the brand. More
important, the message should be consistent with the other marketing channels (Chow, 2013). Aside
from creating a strong brand, relating to the customer should be a priority. In that particular scenario,
the use of social networks like Facebook, LinkedIn, Snapchat, Tumblr, etc. acquires more and more
importance, mainly because of their ability to increase the electronic-Word Of Mouth (eWOM) among
luxury brands (Mohr, 2013). Pioneers in the field of social media in the fashion industry are the brands
Louis Vuitton and Burberry: from airing their fashion shows in real-time to everyone interested (Jiyoung
Kim, and Ko, 2010), to assigning 60 percent of their marketing resources to online communication
instruments (Heine, 2014). Proving social media makes a valid tool in marketing, Mikalef, Giannakos,
and Patelli (2012) saw that it already changes the consumers’ actions by influencing the research
behavior online.
Linked to social media, is the concept of user-generated content, which translates into people sharing
information and their opinions about products and brands online to anyone interested. Reviews, videos,
and blogs are only a few examples of the massive amount of UGC platforms (Krumm, Davies, and
Narayanaswami, 2008). In response to the free expression of opinions, UGC has seen an increase in
popularity. Therefore, offering a counterweight to the great amount of opinions in the corporate
environment is necessary. All the while, the image of both the company as well as its brand and
products is strengthened (Zhang, Craciun and Shin, 2008). In various different industries, the
blogosphere is already embedded in the DNA of many companies (Colliander, and Dahlén, 2011).
3
Nonetheless, many companies are critical towards the platform because of its unruly nature (Huang, et
al., 2007).
The writers, whose opinion is valued and trusted by its followers, can be described as “fashionable
friends” (Colliander, and Dahlen, 2011, p.314). Therefore, the credibility of the blogger is an important
and delicate concept (Huang, Chou, and Lin, 2008). Nevertheless, as Colliander and Dahlen (2011) found,
online magazines are less effective in comparison to the content of a blog. Possibly because of the
significant effect credibility and image has on consumer’s acceptance of the message content
(Colliander, and Dahlen, 2011).
Since fashion blogs are a phenomenon of the latest years, research has yet to discuss the larger
proportion of its potential. Nonetheless, there is research covering the difference between the content
of a consumer fashion blog and a sponsored blog by Kulmala, Mesiranta and Tuominen (2013). Besides
that, an article by Manafy (2010) concluded that the adopting the social media has become necessary in
order to survive as a brand, as it has a large impact on consumers. Therefore, eWOM needs to be
boosted, through restituting consumers with free products and services, among others (Ryu and Feick,
2007). Factoring in blogger credibility, the advertising message is, therefore, found to be best circulated
by bloggers to reach the target audience (Steyn et al., 2009).
When discussing sponsored content, the inclusion of an advertising disclosure needs to be considered.
In notifying the reader of the persuasive intent, their awareness of a product is affected, but also the
attitude towards the brand and product alters. (Russell, 2002) Furthermore, an interaction effect can
arise from their use in a sponsored blog, and can influence the activation of advertising literacy. The
latter enables the control of persuasion efforts, but simultaneously affects the attitude unfavorably
(Boerman, van Reijmersdal, and Neijens, 2012). This could result in corporate blogs, an online
information channel, where content about the company is posted for consumers by the organization
(Ahuja, and Medury, 2010), becoming a more profitable channel to communicate.
The remainder of this paper is organized as follows. Previous research undertaken in relation to social
media and blogs are examined, with a further exploration of corporate and sponsored blogs, and their
relation to the concepts of brand attitude, product attitude, and purchase intention. Afterwards, the
experiment for this research is fully explained. Finally, the results are interpreted and conclusions and
future directions are provided. The central research question of this dissertation is:
“What is the impact on the brand attitude, product attitude, and purchase intention of corporate blogs
in comparison to sponsored blogs?”
4
3. Theoretical background and
Hypothesis development
3.1 Social media and Blogs in a luxury fashion environment
UGC and other ways of interconnecting through social media, have gained attention in recent years.
Because of its increased popularity and usage, social media has become essential in the business
environment application, to influence consumer’s researching as well as buying behavior. (Rehmani, and
Khan, 2011, Peterson, R.A., Balasubramanian, S., Bronnenberg, B.J., 1997)
In the management of luxury brands, social media is intensively used to reach customers (Reyneke, Pitt,
and Berthon, 2011). Beer and Burrows (2007) even characterize the “Web 2.0” as a collaborative, direct
and UGC driven environment. Derived from these characteristics, consumers consider the social media
as a credible source of information. With the surge of this new channel, luxury brands have gained a
new platform on which they can provide meaningful information. Through a thought-out social media
platform, the reputation of the brand can be strengthened, which ultimately leads to a better
competitive advantage. (Heil, Lehmann, Stremersch, 2010) And although there are a lot of positive
aspects, maintaining the integrity of the brand needs to be put forward when applying UGC and social
media (Van Laer and de Ruyter, 2010).
All the while, consumers discovered the opportunity to build a online community, on Facebook, Twitter,
etc, which actively contributes, in comparison to traditional media (Bagozzi and Dholakia, 2002). In the
research by Dellarocas, Zhang and Awad (2007) about motion pictures, eWOM shows a lot of potential
in terms of predicting box office sales as a useful metric, proving social media can be more than a
marketing tool. When making a thought out, informed buying decision, the experiences and opinion of
peers are taken increasingly more into account (Lee, Park, and Han, 2008). Consequently, reviews have
developed a twofold function for consumers: “providing information and recommendations” (Lu, Chang,
and Chang, 2014), which is especially accurate for hedonic products (Smith, Menon, and Sivakumar,
2005). As a result, there has been an uprising of researching a product online, before purchasing it
offline (ROPO) (Heil, et al., 2010).
5
Another advantage of the integration of the new media, is its ability to reach consumers at various
phases of the purchasing process (Samuel-Camps, and Haldan-Jones, 2013). For instance, to
communicate the brand’s image and story, to raise awareness among customers. In response, the
behavior of the luxury customers has altered too, for instance the consumption of media using smart
phones and tablets. (Mohr, 2013) As a result, in 2009, social media usage saw an extreme growth
(Mohr, 2013), which pushed luxury brands to fully adopting the tool in its digital marketing strategy.
Many of them have become leaders in the field, which is necessary to remain relevant to the ever-
changing social media landscape, making it part of their daily communication. Considered as the
absolute leader in social media use, Burberry’s brand affinity has risen ever since the use of digital
campaigns, while simultaneously attaining an increase of 39,8% in profits in 2011. (Phan, Thomas, and
Heine, 2011). It is fair to say, eWOM has sparked the interest of both the corporate environment as well
as the consumers. An effect of this is, is the evolution in type of guests of Mercedes Benz’s Fashion
Week in New York. Before the surge of the blogosphere, the invitees consisted of the elite in the fashion
industry, now many of them are fashion bloggers. (Mohr, 2013)
With the proliferation in the use of social media, Mangold and Faulds (2009) found that new
instruments and tactics to connect with customers originated. In the study, they discuss its substantial
influence on consumer behavior, which has made the integration into the advertising mix essential.
However, the authors note that brands’ managers still require the necessary experience and confidence.
Nonetheless, Mangold and Faulds (2009) found that social media’s dual purpose in a corporate setting
has been proven to be advantageous, both as communication platform toward its customers, but also in
allowing the interaction between customers. That interaction leads to the concept of UGC, but also to
the problem for companies of how to profit from that interaction. The authors propose various ways of
coping with the uncertainty, that comes with the platform, such as “offering a networking platform,
providing exclusivity, providing information, using blogs”, etc. (Mangold, and Faulds, 2009)
An important concept attached to UGC is eWOM. It can be described as “any positive or negative
statement made by potential, actual, or former customers about a product or company, which is made
available to a multitude of people and institutions via the internet” (Hennig-Thurau et al., 2004, p.39).
Steffes and Burgee (2009) found various elements in which eWOM dissimilar from the traditional WOM:
the sender and receiver “are separated by both space and time”, trust is harder to create since there is
no ability to assessment of the source’s credibility possible (Steffes and Burgee, 2009), and a great
amount of people can exchange opinions within the same conversation (Dellarocas, 2003).
Nevertheless, the exchange of information online between consumers has been facilitated by
transmitters of eWOM, like blogs (Xiaofen, and Yiling, 2009), thus changing the communication from an
6
one-to-one to an interactive system. In comparison to the traditional WOM, eWOM is “directed to
multiple individuals, available to other consumers for an indefinite period of time, and anonymous”
(Hennig-Thurau et al., 2004, p. 39). A popular use of social media is the opportunity for consumers to
research products before purchase (Doh, and Hwang, 2009), hence the reason why it earns its place as
the “3rd most trusted advertising method”, according to the Nelson Research Company. For that reason,
the consumer communities have been getting attention from both the academic and corporate world,
because of the potential knowledge consumers’ opinions contains about the market (Xiaofen, and Yiling,
2009).
Blogs, the abbreviation of web logs, “personal journals on the internet arranged in reverse chronological
sequence that facilitate interactive computer mediated communication through text, images, and
audio/video objects” (Huang, et al., 2007), which facilitates the discussing of opinions, providing
information, etc. (7 things you should know about Blogs, 2005). Making the customer more affiliated to
with the company, blogs can influence that relation by various ways, ranging from obtaining information
to posting reviews after purchase (Mangold and Faulds, 2009). This creates an opportunity for
companies to tap into previously unused, unreachable resources, like an interactive community (Kaplan
and Haenlein, 2010). In that regard, using blogs in a business environment serves multiple purposes:
“guerilla marketing” (Lyons, 2005), ambush competition (Barbaro, 2006), building a relationship with
customers, uncovering trends, etc (Kirkpatrick, and Ryan, 2005). Several other advantages have
originated for companies, such as “research, environmental scanning, and issue management”, next to
being low-cost and having a large reach. Nonetheless, although to a lesser extent, research proves there
to be a few downsides, for instance the “exaggerated significance attached to blogging”, as well as the
“blogger’s credibility and status”. (Kent, 2008) A good example of why consumers need to be critical, is
the Australian health blogger Belle Gibson. She lied about having multiple cancers, and self-treating
these through diet and alternative medicine, deceiving her many followers (Davey, 2015).
In comparison to traditional media, blogs have the ability to post regular updates involving a subject,
which undoubtedly affects social media’s effectiveness (Mohr, 2013). Besides that, Mohr (2013) also
describes the fact that, the opportunity of sharing opinions among peers increases the alluring practice
of social media. The author therefore identifies today’s “influencers” as popular bloggers in the luxury
industry, in comparison to the previous decennia, where the elite magazine editors held that title.
According to Mohr (2013), besides spreading relevant information, like every other media platform,
having a strong personal opinion ensures the bloggers of their success. For the industry, the increasing
popularity of fashion blogs offers both the potential of an information source, as well as a new
communication channel (Chih, Wang, Hsu, and Huang, 2013).
7
Apart from bloggers’ influence, their success is determined by the increasing popularity of investigating
a product before actually buying it. Making a purchasing decision is, therefore, to an ever greater extent
influenced by opinions of peers in the blogosphere. (Cox, Martinez, and Quinlan, 2008) Consumers
keenly explore the multitude of opinions of more well-informed consumers (Flynn, Goldsmith and
Eastman, 1996). Therefore, bloggers can also be described as powerful influencers, and being called
“opinion leaders” (Shoham, and Ruvio, 2008, p. 280). This creates an opportunity for companies to tap
unto that influence ((Hsu, Huang, Ko, and Wang, 2014) as an instrument to persuade (Kent, 2008). With
the accumulation of that power, many companies deem popular bloggers the reporter 2.0 (Mohr, 2013).
Besides their unique opinion that attracts consumers, these influencers are very tech savvy. As a result,
their voice attains an even wider reach by using various other online media platforms. (Shoham, and
Ruvio, 2008) Several bloggers have even made blogging their profession, for instance the Belgian
fashionista Tiany Kiriloff.
3.2 Effectiveness Corporate and Sponsored Luxury Fashion Blogs
The ever-growing influence of bloggers, pushes marketers to tap that resource. As a result, sponsored
blogs have increased in importance, partially because of their superior level of credibility in comparison
to marketer-generated content. (Kulmala, Mesiranta, and Tuominen, 2013)
Especially in the fashion industry, blogs exercise great influence on its followers, as an source for
information on new trends (Cheung, Lee, and Rabjohn, 2008). Although in lesser extent, blogs in general
have been studied, but contrary to their increasing importance, little on the fashion side exists to this
day. Nevertheless, the research of Johnson and Kaye (2004) found several functionalities of blogs in
“creating trends, sharing news and opinion, and spreading information”. Blogs’ ability to “build or
break” a brand (Owen and Humphrey, 2009, p. 3), next to having little bias (Gruen, Osmonbekov and
Czaplewski, 2006) shows its importance beside its influence on readers. Linked to para-social
interaction of blogs, Colliander and Dahlen’s (2011) research confirms the positive effect of blogs on
attitudes and buying decisions.
The illusion of having a genuine relationship, bearing resemblance to a relation in reality (Rosaen, and
Dibble, 2008), with a media figure is called the Para-Social Interaction (PSI) (Horton, and Wohl 1956).
Followers will identify themselves with the blogger, and respect them, among other aspects. As a result,
readers start to experience it as a social relationship, instead of a virtual one. (Auter, and Palmgreen,
8
2000) Developing that feeling can be accounted for by the fact that the virtual relation starts to
resemble a real one, since they have similar characteristics: it provides friendship (Hays, 1984), both are
out of free will (Wright, 1978), and there needs to be an attraction on a social level (Rubin, and McHugh,
1987). The reader engages in a relation because the traits of the source are comparable to one’s self
(Turner, 1993). As hypothesized in the research of Colliander and Dahlen (2011), PSI is significantly
higher for blog readers than for the traditional media audience, such as magazines. Resulting in brand
attitude and purchase intention being higher after exposing the brand and product on the blog, in
general the promotional effectiveness increased.
Given the higher effect than traditional media, two types of blogs can be used for marketing purposes: a
corporate blog or a sponsored consumer blog (Kulmala, Mesiranta, and Tuominen, 2013; Lee, and Koo,
2012). Both are used for research purposes to identify trends (Rickman, and Cosenza, 2007), as well as
to reach potential customers (Corcoran, 2010).
3.2.1 Sponsored blog
In this dissertation, sponsored content is defined as, based on the definition of brand placement by
Karrh (1998): the integrating of brands or products in a message from the blogger with the purpose of
advertising, like blogs, in exchange for compensation from the sponsor (van Reijmersdal, Neijens, and
Smit, 2009). Thus, in influencing a blog post as a company, the practice can be considered advertising
(Forrest, and Cao, 2010). However, in doing so, companies should take into account the personal style of
the source; products send should match this style. For companies, a thorough examination is necessary
to ensure a match between the brand or product and the blogger (Kulmala, Mesiranta, and Tuominen,
2013)
Commonly used for the expansion of a customer base (Verlegh, Pruyn, and Peters, 2003), is the concept
of member-get-member programs (MGM programs) (Chan, Lin, and Bodhi, 2014). The program
stimulates existing customers into convincing others through word-of-mouth to buy a product and
become a customer. The deal for the existing consumer is often sweetened by the offering of benefits
for both parties, which resembles the companies sponsoring a fashion blog. (Verlegh, Pruyn, and Peters,
2003) In recent years, eWOM has become another channel for the practice, resulting in “long-term
relationships“ (Chan, Lin, and Bodhi, 2014). For companies, sponsored blogs offer the opportunity to
informally address the target group (Porter, Sweetser, and Chung, 2009). In this dissertation, sponsoring
bloggers to endorse products or brands receive direct-monetary benefits (Corcoran, 2010), without
9
actually trying the product. However, paying bloggers may be detrimental to the blogger’s credibility
(Petty, and Andrews, 2008). Nevertheless, with regard to attitudes towards the blog, research by Lee
and Koo (2012) has shown there to be no influence of any benefits, like promotions or reductions.
3.2.2 Corporate blog
A corporate blog can be defined as a blog that is approved by the company, a platform where they can
publish and manage content, to face the issue regarding the control of a blog head on (Lee, Hwang, and
Lee, 2006). The adoption of the blogosphere in companies has already brought forth options ranging
from CEO’s blogging, marketing blogs, to employee blogs (Wright, 2006). These can have various goals;
for instance the diffusion of information about the company, or identifying complications within the
market. Above all, the blog is a tool that can adapt to the personal needs of customers, and offers an
opportunity to directly communicate with. (Cho, and Huh, 2010)
It can be conceptualized as an online storage of information where content is posted for consumer
consumption. The corporate blog can be an answer to consumers researching products online before
buying, or making them aware of current promotion, next to voicing the opinion of the company in
arguments. (Ahuja, and Medury, 2010) Tasked with the responsibility of attracting traffic to the blog and
posting relevant content, the bloggers within the corporate blogosphere are not necessarily the
spokesperson or CEO’s, but do have a close relation to the company. Effectively fulfilling their
assignment, the corporate blog has the potential to be an effective communication channel and
reinforce the relation with the customers. (Cho, and Huh, 2010) Simultaneously, the company benefits
from a positive image, when positive brand awareness is created (Sheth, Parvatiyar, 1995), thus
enhancing the brand recall (Esch, Langner, Schmitt, and Geus, 2006) when making a purchase decision
(Brengman and Karimov, 2012).
3.2.3 Effect Blogs on Brand attitude, Product attitude and Purchase intention
in comparison to traditional methods of advertising, the research of Trusov, Bucklin, and Pauwels (2009)
showed eWOM’s potential to positively influence behavior, increasing the growth of followers on social
media with “longer carryover effects”.
10
3.2.3.1 Brand and product attitude
Perceptions and experience with a product or brand, result in consumers forming a attitude.
Simultaneously, it is also a highly correlated to behavior, like purchase intention. In other words, by
using promotions, the consumers becomes more familiar, altering his or her perception, and ultimately
influencing the willingness to buy. (Shimp, 2010)
As an extension to the already massive amount of platforms for eWOM (Ahmed et al., 2009), blogging
has proven itself as a influencer of consumers’ evaluations and attitudes (Laczniak, DeCarlo, and
Ramaswami, 2001). For instance, in the research of Chevalier and Mayzlin (2006) the influence of
positive and negative online book rating reviews on book sales were analyzed, of which the authors
described a positive relation. On the other hand, Lee and Youn (2009) showed there to be influence of
the opinions’ extremity and direction (positive or negative) on the extent to which the attitude was
positive. They found negative reviews to weigh through more than positive reviews, resulting in
negative reviews easily negating the increase in attitude after a positive review. (Lee, and Youn, 2009)
Nevertheless, the research by Ballantine and Yeung (2015) confirms the impact of a positive review of a
product on both brand attitude and purchase intention. Other research by Jalilvand and Samiei (2012)
shows the same results, assuming that brand attitude is affected by brand awareness and brand image.
3.2.3.2 Purchase intention
Purchase intention is described as “the consumer’s possibility of purchasing in the future” (Kim, and Ko,
2012, p. 167) . According to Kim and Ko (2012), the concept is a manifestation of attitudes, making social
media an useful “two-way communication” tool in identifying the customers’ behavior and attitudes.
Prior to making buying decisions, many consumers already value the opinions about products of others
in online communities (Mikalef, Giannakos, and Pateli, 2012; Chih, Wang, Hsu, and Huang, 2013). Before
actually purchasing, the intention is provoked (Zeithaml, Berry, Parasuraman, 1996), which is a valuable
concept in the prediction of purchases for companies and researchers (Kim, and Ko, 2012). Aside from
attitudes, the brand’s image, an aggregation of experiences and encounters by customers with the
brand (Keller, 1993), impacts the potential purchasing behavior (Wu, Yeh and Hsiao, 2010).
11
The study of Rehmani and Khan (2011) researched the influence of social media on mobile phone
customers in Pakistan. The authors found that UGC and eWOM had a significant impact on the purchase
intention. Because of the concepts’ ability to obtain relevant information and assess the quality of
products, consumers’ intentions alter. (Rehmani, and Khan, 2011) Tseng, Kuo, and Chen (2014)
confirmed that relation; the authors even found a larger effect of eWOM in comparison to traditional
ads.
In 2008, a study analyzed the effects of social media on the purchase behavior of consumers. DEI
Worldwide found that 49% of the questioned consumers made decisions based on information from
Facebook, Twitter, etc. After buying, 60% declared to have reviewed the product online for others to
read. 45% also claimed to have actively sought the advice of peers, using eWOM channels. Fast forward
to 2015, this amount will have likely increased. Anticipating to the opportunity of influencing attitudes
and purchase intention using UGC, marketers consider sponsored messages a valid tool (Lu, Chang, and
Chang, 2014).
With the knowledge about brand attitude, product attitude and purchase intention, the size of effects
on the subject can be hypothesized. The following hypothesis is proposed:
H1: The brand attitude, product attitude and purchase intention towards a sponsored luxury fashion
blogs is more positive than towards corporate luxury fashion blogs.
12
3.3 The Mediating impact of Source Credibility
As a new way of relating to the public, blogs are considered more interactive and spontaneous (Scott,
2007). In order for consumers to accept statements made by bloggers, a relation has to be build where
the reader relies on and trusts the opinion of the writer (Moorman, Deshpande, and Zaltman, 1993). To
which extent the trust stretches depends on the evaluation of the blog (Doyle, Heslop, Ramirez, and
Cray, 2012), for instance the integrity (Lee and Turban, 2001). As a result, in recent years online
consumers have begun to regard blogs a highly credible medium (Bickart, and Schindler, 2001), which
affects behavioral intention (Casaló, Flavian, and Guinaliu, 2008).
Without knowledge about the source, the reputation can significantly impact to which extent the
consumer is influenced and persuaded. From the notoriety of a company, consumers often deduce the
credibility of a source. (Flanagin, and Metzger, 2008) Having a good relation with the reader enables the
blogger to develop a connection, once established, it smoothens the ability to positively affect behavior
(Hung, and Li, 2007). Closely related is the source credibility theory, which states that the more credible
the source, the more persuasive the message (Ohanian 1991). Nevertheless, due to eWOM’s lack of
editorial process , it is often criticized. (Wischnowski, 2011) Regardless whether the blog is sponsored or
not, bloggers are considered independent from any corporate influence, therefore readers perceive
them as highly credible (Chu, and Kamal, 2008). As a result, Nabi and Hendrinks (2003) found that
consumers often adopt the opinion when making a buying decision, if they consider the source credible.
Another study by Ladhari and Michaud (2015) showed that in the hotel industry, the reviews generated
on Facebook by other customers influenced others’ booking intentions, making them increasingly more
trustworthy towards the comments.
Wanting to influence behavior online, Hsiao, Lin, Lu, and Yu (2010) found that “perceived ability,
perceived benevolence/integrity, perceived critical mass, and trust in a website” are essential in creating
trust between the blogger and follower. Covering the subject, is the source credibility model (Ohanian,
1991). The model incorporates various key elements, such as expertise, trustworthiness (Baker, and
Churchill, 1977) and the information quality of the blog (Rubin, and Liddy, 2006), among others. Forman,
Ghose, and Wiesenfeld (2008) also found the amount of self-disclosure and the blogger’s profile to have
repercussions on the perceived credibility. The authors also discuss the fact that readers, who deem
themselves similar to the source, are more likely to accept information (Forman, Ghose, and Wiesenfeld,
2008). On the other hand, other researchers have claimed the influence of the trustworthiness of
previous information about a certain subject, the grammar used in the blog post and the authority of a
13
source as the more important aspects of credibility (Rieh and Danielson, 2007; Stavrositu ,and Sundar,
2008; Chesney, and Su, 2009).
Nevertheless, to be deemed a trustworthy source, bloggers’ most important asset is meaningful
information, and being truthful (Chu and Kamal, 2008). For businesses, the credibility of the source is
essential for a beneficial advertisement, when collaborating with popular blogs (Huang, et al., 2007) In
this scenario, increasing the acceptance of a message can be raised by increasing the credibility of the
source, through its ability to provide relevant information for instance (Doyle, Heslop, Ramirez, and
Cray, 2012). However, influencing the blogs’ traits incorrectly, can cause the source to appear biased. In
other words, the blogger’s credibility is a fragile concept, losing the consumer’s trust may result in
rejecting the message (Lee, and Koo, 2012). An essential factor is the blogger’s profile, which possesses
the ability to limit scrutinizing the blog, leading to more trust on behalf of the reader. (Petty, Priester,
and Brinol 2002)
Without trust, impacting consumers’ decision making process will become more difficult, as well as to
which extent the provided information is accepted (Luo and Zhong, 2015). Furthermore, the research by
Cheung, Lee, and Rabjohn (2009) has also shown recommendations are more likely to be adopted when
the source is perceived credible. In this regard, an early study confirms the claim that high credibility
results in high persuasion by a message, and vice versa (Grewal, Gotlieb, and Marmorstein, 1994).
Results illustrate that the higher the trust in a source, the more likely a positive brand attitude will be
created (Wu, and Wang 2011), and a positive purchase intention will arise (Fan, and Miao, 2012).
It can be hypothesized that:
H2: As a mediating variable, the credibility of the source influences the relation between the blog type
and brand attitude, product attitude, and purchase intention.
14
3.4 The Mediating impact of the activation of Advertising Literacy
Advertising literacy is “the ability to recognize, evaluate and understand advertisements and other
commercial messages” (Malmelin, 2010, p. 130). Becoming more literate entails developing a broader
skill set to ward off persuasion attempts (Potter, 2014).
Potter (2014) defines, the general variant, media literacy in three components: personal locus,
knowledge structures, and skills, all essential to extend the set of perceptions on the media. Personal
locus gives the consumer the ability to decide what is processed and what is disregarded. The person’s
competence in using the personal locus, results in controlling the media. The second skill, enables
consumers to decide which information is relevant. Known as the knowledge structure, the receiver of
the message will seep through and transform the relevant information into practical knowledge. And
finally, to process the data and compose the knowledge structures, skills are necessary to excerpt the
media and shape them sets of information. (Potter, 2014)
In general, media literacy is the knowledge that comes from years of encountering advertising and
developing ability to control them, which results in a frequently used skill set (Eagle, 2007). Closely akin
to the concept of advertising literacy is the Persuasion Knowledge Model (PKM). According to Friestad
and Wright (1994) the experienced the consumer, the more knowledge to see through the intentions
and ploy of marketers (Friestad, and Wright, 1994).
Consumers noticing the purpose of the marketer will use their advertising literacy, much like a filter
(Rozendaal, Buijzen and Valkenburg, 2009). Called the activation of advertising literacy, it results in the
receiver of the message becoming suspicious towards the marketer. The activation enables the
consumer to act against the manipulations, and is called ‘cognitive defense’. (Brucks, Armstrong,
Goldberg, 1988) The ability to critically approaching advertising, is facilitated by the possession of that
essential knowledge of advertising to protect themselves from the effects (Friestad and Wright, 1994).
The following hypothesis is proposed:
H3: As a mediating variable, the activation of advertising literacy influences the relation between the
blog type and brand attitude, product attitude, and purchase intention.
15
3.5 Use of Advertising Disclosures
A possible activator of the advertising literacy is an advertising disclosure. It is used in sponsored
content to ensure the consumers is aware of marketers trying to persuade them (Woods, 2008).
Sponsored content without the inclusion of a disclosure, can be deemed as covert marketing, a
reasoning that applies to sponsored blogs (Campbell, Mohr, and Verlegh, 2012). Characterized by its
sole purpose of convincing consumers, many consider the source biased as a result (Zhu, and Tan, 2007;
Forrest, and Cao, 2010). As a result, sponsored messages being called out for being are common (Cain,
2011) In response, many countries draw up laws. In the EU, a new law was developed which orders
sponsored content to be disclosed, although it is not mentioned how bloggers should notify their
readers explicitly (Boerman, 2014; Meindersma, 2012). Other countries, like the US, have already passed
laws to avoid the allegations of consumer deception (Rotfeld, 2008).
In the research of Campbell, Mohr, and Verlegh (2013), the timing of sponsorship disclosures are
analyzed, proving that they do induce a change in persuasion, although depending on the timing of the
statement. It seems that, revealing the disclosure prior to the message leads to the modification of
recall, however, the attitude remains the same. On the other hand, exposing the disclosure after the
message alters the impact on both recall and attitude towards the message, and ultimately the product.
In conclusion, the use of an advertising disclosure does indeed affect consumers’ awareness and
attitude towards the brand. (Campbell, Mohr, and Verlegh, 2013) On the other hand, a study by Wood
and Quinn (2003) found the opposite, instead of a deterioration in the consumers attitude towards the
brand, the brand was emphasized. The results show a rise in brand awareness, regardless of when the
exposure takes place (Wood & Quinn, 2003). Other research by Boerman, van Reijmersdal and Neijens
(2012) only found a significant impact on brand memory. However, most researchers agree that when
the readers are made aware about the intention to persuade via sponsorship, they become more critical
and the judgment alters to a more negative view of the brand.
In the research of Boerman, van Reijmersdal and Neijens (2012), the concept of the Persuasion
Knowledge model, thought out by Wright in 1985, can be used to discuss and explain the concept of
persuasive intent of sponsored content, advertising disclosures, and the activation of advertising
literacy. The model offers an explanation of how people obtain knowledge about persuasion and use
knowledge to protect themselves from persuasion attempts. The concepts raises the importance of
awareness of persuasion attempts prior to the activation of the persuasion knowledge. When
consumers are knowledgeable about the attempt, they can apply their insights, acquired over a lifetime,
to control to which extent he or she is influenced (Friestad, and Wright, 1994). Earlier research, even
16
suggests a resistance towards the message when the persuasion attempt is noticeable (Hass, and Grady,
1975), which tends to result in the attitude being less favorable (Campbell, Mohr, and Verlegh, 2007).
Ultimately, the receiver of the message may also deem the marketer as disingenuous (Carlson, Bearden,
Hardesty, 2007).
However, the research by Lee (2010) concluded that the including a disclosure, to warn the reader of
persuasion attempt, leads to the activation of advertising literacy, which has a diminishing effect on the
brand attitude, product attitude and purchase intention. A study by Wentzel, Tomczak, and Herrmann
(2010) defines narrative or manipulative ads and expository ads. In the first type, the message is
communicated as a story, which leads to readers engaging in narrative thinking. However, the effect is
curbed by the extent to which the manipulative motives of the marketer are apparent. (Deighton,
Romer, & McQueen, 1989), much like sponsored blogs. Thus, the processing leads to the difference in
the two types lies in the processing, the latter requires a analytical method (Adaval & Wyer, 1998). It is
hypothesized that a narrative ad will be assessed more advantageously than a expository ad, which
consists of mostly facts.
However, against expectations, the research shows that expository ads are assessed as more effective in
comparison to narrative ads, due to the fact that the attempt of manipulating is perceivable to the
consumer. Both ads are therefore analyzed more analytically, because the reader becomes more
guarded against the marketer’s tactics. (Wentzel, Tomczak, and Herrman, 2010)
This leads to the following hypothesis:
H4: The inclusion of advertising disclosures activates the reader’s advertising literacy, resulting in:
a) higher effectiveness in product attitude, brand attitude and lower purchase intention of
corporate blogs, in comparison to sponsored blogs with advertising disclosure.
b) higher effectiveness in product attitude, brand attitude and lower purchase intention of
sponsored blogs without advertising disclosure, in comparison to sponsored blogs with
advertising disclosure.
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3.6 The Moderating impact of Brand Awareness
The concept of brand awareness refers to whether consumers can recognize or recall the brand,
whether or not they know the brand (Keller, 2009). Hutter et al. (2013) found, in their research about
the impact of social media, that when consumers interconnect with the a company’s social media, for
instance a Facebook fanpage, brand awareness increases.
As hypothesized in the research of Ha (2014), high brand awareness of a reliable source leads to
consumers deeming the media trustworthy. For consumers, brand awareness is deemed as a heuristic
cue to make purchasing decisions. In the mindset that, the more acclaimed the brand is, the more
reliable. (Macdonald, and Sharpe, 2000) In the research of Smith and Wheeler (2002), high brand
awareness resulted in the conviction of the good nature of the brand, and even advocating on their
behalf towards other consumers.
Next to that, Homburg, Klarmann, and Schmitt (2010) found that optimizing brand awareness,
significantly improved the company’s performance, therefore making it an interesting concept for the
corporate setting. The link brand awareness to market performance can be provided using the theory of
information economics. In the theory, brand awareness is composed of two functional structures. Its
first function is diminishing information costs, serving as a heuristic cue. Secondly, consumer prefer
brands that have a good image, which results in brand awareness’ ability to reduce risk when making
the buying decision. (Erdem & Swait, 1998)
Studies also show a increase in brand attitude resulting from the extent to which the brand is renowned,
which indirectly implies a high brand awareness (Laroche, Kim, and Zhou, 1996). The research of Hoyer
and Brown (1990) confirmed that substantial influence of brand awareness on decision processes of
consumers. Another study, by Ho, et al. (2014), even shows brand awareness as a significant moderator
between the blog type and its effectiveness.
This leads to the following hypothesis:
H5: As a moderator, high brand awareness leads to more positive brand attitude, product attitude,
and purchase intention for both sponsored and corporate blogs.
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4. Empirical research
The goal of this dissertation is to analyze the impact of sponsored versus corporate luxury fashion blogs,
with or without the use of advertising disclosures, on brand attitude, product attitude and purchase
intention. Using a between subjects factorial design, the different blogs were used and manipulated as
independent variable.
4.1 Overview of the hypotheses
H1: The brand attitude, product attitude and purchase intention towards a sponsored luxury fashion
blogs is more positive than towards corporate luxury fashion blogs.
H2: As a mediating variable, the credibility of the source influences the relation between the blog type
and brand attitude, product attitude, and purchase intention.
H3: As a mediating variable, the activation of advertising literacy influences the relation between the
blog type and brand attitude, product attitude, and purchase intention.
H4: The inclusion of advertising disclosures activates the reader’s advertising literacy, resulting in:
a) higher effectiveness in product attitude, brand attitude and lower purchase intention of
corporate blogs, in comparison to sponsored blogs with advertising disclosure.
b) higher effectiveness in product attitude, brand attitude and lower purchase intention of
sponsored blogs without advertising disclosure, in comparison to sponsored blogs with
advertising disclosure.
H5: As a moderator, high brand awareness leads to more positive brand attitude, product attitude, and
purchase intention for both sponsored and corporate blogs.
19
4.2 Methods
4.2.1 Design
To test the hypotheses, an experimental research was conducted, using a three conditions between
subjects design. These three conditions enable the comparison between the Sponsored Blog with
Advertising Disclosure, the Sponsored Blog without Advertising Disclosure, and the Corporate blog. The
respondents in the survey were randomly assigned the various conditions to assess the effect on the
dependent variables: brand attitude, product attitude, and purchase intention. Also the Credibility and
Advertising literacy was included in the research as mediating variables.
4.2.2 Stimuli
4.2.2.1 Material
The three conditions: the Sponsored Blog with Advertising Disclosure (SponsoredPlus), the Sponsored
Blog without Advertising Disclosure (SponsoredMinus), and the Corporate Blog (Corporate), each
consisted of the same blog post about a leather jacket by Balmain, but a different profile and blog title,
based on the type of blog. One of the sponsored blogs also has an advertising disclosure, as a red
banner inserted in the blog post, serving as moderating variable. (addendum attachment 1)
4.2.2.2 Pretest 1
Beforehand, a pretest was conducted to analyze whether the respondents were able to distinguish the
different conditions and saw the advertising disclosure. Next to that, the respondents had to consider
the brand and product as luxurious., using a 7-point Likert scale with 3 items (luxurious, exclusiveness,
and inexpensiveness).
A within-subjects design was used, questioning the respondents on each type of blog. The three blogs
were to be read and looked at thoroughly. Afterwards, they were asked by whom the blog was written,
whether they saw an advertising disclosure, and whether they considered the leather jacket by Balmain
luxurious.
20
The pretest was conducted on 30 respondents, a random collection of fellow students, friends, and
family, using the survey program Qualtrics. After filtering on the basis of a small amount of time spent
filling out the survey and not completing the survey, 15 respondents remained. 73% of them were
women and 30% were men, within the age range of 19-43. (averageage = 23)
The recognition of the source was tested computing the frequencies. The results show that 80% of the
people was able to distinguish the source for the Sponsored Blog with Advertising Disclosure, 80% for
the Sponsored Blog without Advertising Disclosure and 87% for the Corporate blog 87%. In other words,
a large proportion of the respondents was able to recognize the source.
The advertising disclosure was analyzed using the same method. However, the manipulation on the
advertising disclosure in the Sponsored Blog with Advertising Disclosure did not work as only 33% of the
respondents indicated that they saw the disclosure.
The luxuriousness scale is first tested for its internal consistency, after which the variables for Luxury are
tested to determine whether the brand was considered luxurious, using an One-Sample T-test. The
rating of Luxury is analyzed using a 7 Point Likert Scale, ranging from ‘Do not agree at all’ and ‘Agree
completely’ when asked whether the respondent considered the product luxurious, exclusive, and
inexpensive. The data is tested on the newly computed variable ‘Luxury’, consisting of the three
variables. The mean ‘Luxury score (M=6.067, SD=.82) was lower than the proposed test value of 4, a
statistically significant mean difference of 2.067, t(14)=9.78, p=.00. In conclusion, the respondents did
consider the product luxurious.
The analysis shows that the respondents were able to distinguish the writers in the Blogs. However, the
advertising disclosure has to be manipulated and pretested again. The respondent did consider Balmain
a luxury brand.
21
4.2.2.3 Pretest 2
In the second pretest, a similar group of respondents was targeted. 23 filled out the questionnaire, of
which 15 completed the survey within a realistic time frame. 82% of the respondents were women, 18%
were men, within the age range of 19 to 50. (averageage = 25)
The layout of the pretest was exactly the same as the first one, the question was too, only the stimulus
had changed into a more noticeable disclosure, using a red banner. Again, the respondents were asked
whether they saw the Advertising Disclosure.
Using the frequencies again, the results show that 87% of the respondents, who read the article with the
Advertising Disclosure, noticed it. Concluding that by making the advertising disclosure bigger and
brighter in the sponsored blog, readers noticed it easier.
4.2.3 Respondents
The respondents required for the research had to be in the target group of Balmain, people interested in
luxury fashion. Therefore, respondents were sought after in streets renowned for selling luxury brands
like the Vlaanderenstraat, (Ghent), Lange Kruisstraat (Ghent), and the Leopoldstraat (Antwerp), but also
at the stock sale of A.F. Vandevorst. Furthermore, popular (online) magazines (Elle, Belmodo, Glamour,
etc), and bloggers (Afterdrk, Emma Gelaude, Tiany Kiriloff, Chapter Friday, etc) were contacted for their
help.
In total, 147 answered the questions. However, before analyzing the results, a data clean-up was done.
Afterwards only 95 were kept in the analysis after checking the responses for realistic fill-out time
frames, wrong answers on the control question (Indicate ‘Neutral’), and incompletion. Most of the
respondents had a degree from a university, 68% of them were women, 32% were men, of which
ranging between the ages of 18 and 57. (averageage = 25) Per condition a minimum of 30 respondents
had to be reached to have a reliable outcome. The table shows that this requirement was fulfilled.
Table 1. Respondents per blog condition
Sponsored Blog with
Advertising Disclosure
Sponsored Blog without
Advertising Disclosure
Corporate Blog
N= 31 N= 34 N= 30
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4.2.4 Procedure
4.2.4.1 The survey
The research focuses on the three stimuli: corporate, sponsored without, and sponsored luxury fashion
blog with advertising disclosure; the blog posts write about a leather jacket by Balmain. Here the effect
of these blog posts on the attitude towards the brand, the product, and the purchase intention will be
researched.
At the start of the survey, an introduction explained the respondents what the research was about, how
much they would be spending filling out the questions, and assured them of their anonymity. They were
asked to read the blog post thoroughly and look at the profile and overall layout in detail. Afterwards,
every respondent got to see one randomly chosen blog.
The first questions covers the attitude towards the brand Balmain, using 7 Point Semantic differential
with 5 items. Afterwards, the respondents are questioned about their attitude towards the leather
jacket, using two attitude scales: a 7 point Likert scale with 5 items and 7 point Semantic differential
with 4 items.
The purchase intention is questioned using three questions, each 7 point Semantic differentials of how
likely they would buy the brand and product . To analyze the advertising literacy, three scales were
used. Two were 7 Point Likert scale with 7 items and 3 items and the other a 7 Point Semantic
differential with 1 item. The second mediator, credibility, was questioned using a 7 Point Semantic
differential with 6 items.
Thereafter, the manipulations were checked where the reader was asked by whom the blog was written
and whether they saw a advertising disclosure, followed by the question whether they considered the
product luxurious. Followed by the control variables of whether the respondent read blogs, whether
they followed fashion trends -both measured on a 7 Point Semantic differential- and whether they were
familiar with the brand Balmain, using a yes/no question.
Towards the end of the survey, they were asked about their highest attained diploma, age and gender.
These socio-demographics enable the research to describe the respondents accurately.
The complete survey can be found in the addendum under attachment 2.
23
4.2.4.2 The research design
The design for the researched can be depicted as below. The experimental design is a between-subjects
design. However, the moderating variable Advertising Disclosure cannot be applied to the corporate
blog. Therefore, the research only analyzes three conditions in a between-subjects design. To have a
reliable outcome, a minimum of 90 respondents had to complete the questionnaire properly, within a
certain timeframe.
As mentioned previously, one variable is used to analyze the research question; the variable ‘Blogs’ has
three types (Blog types): Sponsored without Advertising Disclosure (SponsoredMinus), Sponsored with
Advertising Disclosure (SponsoredPlus), and Corporate (Corporate). The choice to use a non-existing
blog lies in the fact that an existing source might induce bias. For the luxury brand, Balmain was chosen,
since it already has the notoriety of being luxurious, but does not provoke extreme emotions as with the
brand Louis Vuitton, or Chanel. The blog was made using the online service by Google: Blogger.
Figure 1. Research design
Luxury fashion blogs:Sponsored vs
Corporate
Brand attitude, product attitude, and
purchase intention
Brand awarenessAdvertising disclosure
Source Credibility
Activation advertising
literacyH3A H3B
H2BH2A
H1
H5 H4
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4.2.5 Measures
4.2.5.1 Brand attitude
To analyze whether the brand attitude varied according to the viewed type of blog, the Brand attitude
scale by Spears and Surendra (2004) (α=.90), a 7-point Semantic Differential scale was used. Here, the
respondents were asked what their attitude towards Balmain was for the following items: ‘bad-good’,
‘unpleasant-pleasant’, ‘unfavorable-favorable’, ‘disagreeable-agreeable’, and ‘dislike-like’.
4.2.5.2 Product attitude
The product attitude was measured using a Product attitude scale by Adams and Geuens (2007) (α=.91),
a 7-point Likert scale. The respondents were asked to indicate to which extent the statements applied
to them (‘completely disagree’ to ‘completely agree’): ‘I like this product.’, ‘This product is not useful to
me.’, ‘This product leaves a good impression on me.’, ‘This product means nothing to me.’, ‘I like to wear
this product.’.
4.2.5.3 Purchase intention
Researching the differences in Purchase intention was done using the 7-Point Semantic Differential scale
(Definitely not purchasing – Definitely purchasing) by Bone and Ellen (1992) (α=.91). The following items
are included: ‘What is the probability that you will purchase Balmain?’, ‘What is the likelihood of you
purchasing Balmain the next time you buy a leather jacket?’, and ‘The next time I buy a leather jacket, I
will buy Balmain.’.
4.2.5.4 Involvement
For the variable Involvement, the measurement was done on a 7-Point Semantic Differential scale by
Chebat, Charlebois en Gélinas-Chebat (2001) (α=.90). The items on the scale are the following:
‘unimportant-important’, ‘irrelevant-relevant’, ‘meaningless-meaningful’, and ‘unnecessary-necessary’.
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4.2.5.5 Reader
The control variables ‘Reader’, whether or not the respondent read fashion blogs, is measured in a
covariates analysis on a 7-Point Likert scale: ‘never-often’.
4.2.5.6 Follower
The control variables ‘Follower, whether or not the respondent follows fashion trends, is measured in a
covariates analysis on a 7-Point Semantic Differential scale: ‘never-often’.
4.2.5.7 Credibility
The variable ‘Credibility’ measures to which extent the respondents consider the blogger a credible
source. The 7-Point Semantic Differential scale by Berlo, D. K., Lemert, J. B., & Mertz, R. J. (1969) (α=.81)
was used, and has the following items: ‘untrustworthy-trustworthy’, ‘not open-minded-open-minded’,
bad-good’, ‘not expert-expert’, ‘inexperienced-experienced’, ‘untrained-trained’.
4.2.5.8 Advertising literacy
To measure whether the type of blog and advertising disclosure activate advertising literacy, three
questions were used, each on a 7-Point Likert scale.
In the first one by Campbell (1995) (α=.75), the respondents had to answer to which extent they agreed
or disagreed to following statements: ‘The way this ad tries to persuade people seems acceptable to
me;’ ‘The advertiser tried to manipulate the audience in ways that I don’t like;’ ‘I was annoyed by this ad
because the advertiser seemed to be trying to inappropriately manage or control the consumer
audience;’ ‘I don’t mind this ad; the advertiser tried to be persuasive without being excessively
manipulative’ (reverse coding); ‘This ad was fair in what was said and shown’ (reverse coding); ‘I think
that this advertisement is unfair/fair’.
26
The second scale by Boush, Friestad, Rose (1994), had one item: ‘When this blog describes the leather
jacket, how hard is the advertiser trying to persuade the consumer into buying?’. The respondents have
to give an answer ranging from ‘not hard at all-very hard’.
The third by Wei, Fisher, Main (2008) and Tessitore, Geuens (2013) (α=.76) had three items to answer
ranging from ‘completely disagree’ to ‘completely agree’: ‘The brand Balmain was mentioned because it
had paid to be mentioned’, ‘While I was reading the blog, it was immediately clear to me that Balmain
wanted to influence reader’s buying behavior’, ‘Before reading, I was aware that a brand had paid to be
mentioned’.
4.2.5.9 Brand awareness
As a moderating variable, the variable Brand Awareness (Did you know Balmain before taking the
survey?) is a dichotomous variable (0= yes, 1=no). The moderation analysis, using a Linear Regression in
combination with the PROCESS macro by Hayes, was performed.
27
4.3 Results
4.3.1 Manipulation check
The frequencies were computed to check whether the manipulations of the Sponsored Blog With
Advertising Disclosure, the Sponsored Blog without Advertising Disclosure, the Corporate Blog, and the
Advertising Disclosure were successful. The results show that of the respondents who saw the
respective Blog, 81% recognized the Blog as written by a consumer when reading the Sponsored Blog
with Advertising Disclosure, 82% for the Sponsored Blog without Advertising Disclosure, and 77% for the
Corporate Blog.
To measure to which extent the respondents saw the advertising disclosure, new variables were
computed for each blog condition. Again, the frequencies were computed to analyze whether the
majority of the respondents noticed the disclosure, when the Advertising Disclosure was indeed
included. The output shows that of the respondents who read the Sponsored Blog with Advertising
Disclosure, 84% was able to notice the disclosure. Of the respondents who read the blog posts without
the disclosure, 5,9% answered they saw a disclosure in the Sponsored Blog without Advertising
Disclosure and 0% for the Corporate Blog. Concluding that only the respondents who should have
indicated they saw a disclosure, were in a large proportion.
An One-Sample T test was used to check the manipulations for the luxuriousness. Again, a variable
‘Luxury’ was computed from the variables luxury, exclusiveness, and inexpensive (reversed). The mean
‘Luxury score (M=6.091, SD=.82) was lower than the proposed test value of 4, a statistically significant
mean difference of 2.091, t(94)=24.99, p=.00. One can conclude that the respondents consider Balmain
a luxurious brand.
28
4.3.2 Testing the hypotheses
4.3.2.1 Main effects
First, it was analyzed how the Blog type affected the Brand attitude, Product attitude and Purchase
intention, with the mediating variable
Hypothesis 1 assumes that Sponsored Blogs without Advertising Disclosure (SponsoredMinus) are more
effective in terms of creating a positive brand attitude, product attitude, and purchase intention, in
comparison to Corporate luxury fashion Blogs (Corporate). Hypotheses 4, however, states that the
inclusion of an advertising disclosure will activate the advertising literacy, resulting in Sponsored Blogs
being less effective than Corporate Blogs. To measure both hypotheses, a new variable (Blogs) was
computed which incorporates every Blog type (0=SponsoredPlus, 1=SponsoredMinus, 2=Corporate).
The correlation table shows significant positive correlations between the dependent variables Brand
attitude, Product attitude, and Purchase intention. For instance, Product attitude will increase when the
Brand attitude increases (r=.50, p<.001)
Table 2. Correlation table
Brand attitude Product attitude Purchase intention
Brand attitude 1 r=.50, p<.001 r=.52, p<.001
Product attitude r=.50, p<.001 1 r=.28, p=.006
Purchase intention r=.52, p<.001 r=.28, p=.006 1
An One-Way ANOVA analysis was performed with all three independent variables on the dependent
variables brand attitude, product attitude, and purchase intention. The results show no significant
difference in brand attitude (F(2, 92)=1.99, p=.14), product attitude (F(2, 92)= 1.71, p=.19), or purchase
intention (F(2, 92)=1.46, p=.24).
Although the One-Way ANOVA shows no significant differences, the hypotheses 1 and 4 call for an
Independent T-test for a two-by-two analysis. The analysis compares the effects of the Sponsored
without Advertising Disclosure with the Corporate Blog, and the Sponsored Blog with Advertising
Disclosure with the Corporate Blog, using the newly computed variables Blog12, Blog02 and Blog01.
29
For hypothesis 1 (Sponsored Blog without Advertising Disclosure > Corporate Blog, using variable
Blog12), the results show a marginal significant difference in brand attitude (t(62)=1.95, p=.056)
between Sponsored Blogs without Advertising Disclosure (M=5.34) and Corporate Blogs (M=4.89).
There’s also a marginal significant difference in purchase intention (t(61.391)=1.80, p=.077) between
Sponsored Blogs without Advertising Disclosure (M=3.3137) and Corporate Blogs (M=2.7333). However,
for the product attitude (t(62)=1.39, p=.17) , there is no significant difference between Sponsored Blogs
without Advertising Disclosure (M=5.51) and Corporate Blogs (M=5.0933). In conclusion, hypothesis 1
can only be accepted partially.
Table 3. One Sample T-test SponsoredMinus vs Corporate
Blogs12 Mean Standard Deviations T(df) P
Brand attitude MSponsoredMinus=5.34
MCorporate=4.89
SDSponsoredMinus=.91
SDCorporate=.92
t(62)=1.95 . 056
Product attitude MSponsoredMinus=5.51
MCorporate=5.093
SDSponsoredMinus=1.16
SDCorporate=1.24
t(62)=1.39 .17
Purchase intention MSponsoredMinus=3.31
MCorporate=2.73
SDSponsoredMinus=1.44
SDCorporate=1.14
t(61.391)=1.80 .077
For hypothesis 4.a (Sponsored Blog with Advertising Disclosure < Corporate Blog, using Blog02), the
results show no significant difference in brand attitude (t(59)=1.021, p=.31) between Sponsored Blogs
with Advertising Disclosure (M=5.15) and Corporate Blogs (M=4.89). There is also no significant
difference in purchase intention (t(54.947)=1.22, p=.23) between Sponsored Blogs without Advertising
Disclosure (M=3.16) and Corporate Blogs (M=2.73). However, for the product attitude (t(59)=1.92,
p=.059), there is a marginal significant difference between Sponsored Blogs without Advertising
Disclosure (M=5.67) and Corporate Blogs (M=5.093), but in the opposite direction as the hypothesis
proposes: Sponsored Blogs with Advertising Disclosure > Corporate Blog.
30
Table 4. One Sample T-test SponsoredPlus vs Corporate
Blog02 Mean Standard Deviations T(df) P
Brand
attitude
MSponsoredPlus=5.15
MCorporate=4.89
SDSponsoredPlus=1.070
SDCorporate=.92
t(59)=1.021 .31
Product
attitude
MSponsoredPlus=5.67
MCorporate=5.093
SDSponsoredPlus=1.10
SDCorporate=1.24
t(59)=1.92 .059
Purchase
intention
MSponsoredPlus=3.16
MCorporate=2.73
SDSponsoredPlus=1.56
SDCorporate=1.40
t(54.947)=1.22 .23
For hypothesis 4.b (Sponsored Blog with Advertising Disclosure < Sponsored Blog without Advertising
Disclosure, using Blog01), the results show no significant difference in neither one of the dependent
variables: brand attitude (t(59.30)=-.75, p=.45); product attitude (t(62.90)=.57, p=.57); purchase
intention (t(61.05)=-.41, p=.69).
Table 5. One Sample T-test SponsoredPlus vs SponsoredMinus
Blog02 Mean Standard Deviations T(df) P
Brand
attitude
MSponsoredPlus=4.15
MSponsoredMinus=5.34
SDSponsoredPlus=1.070
SDSponsoredMinus=.91
t(59.30)=-.75 .45
Product
attitude
MSponsoredPlus=5.67
MSponsoredMinus =5.51
SDSponsoredPlus=1.10
SDSponsoredMinus=1.16
t(62.90)=.57 .57
Purchase
intention
MSponsoredPlus=3.16
MSponsoredMinus =3.31
SDSponsoredPlus=1.56
SDSponsoredMinus=1.44
t(61.05)=-.41 .69
In conclusion, hypothesis 4, both part a and b, is rejected.
31
Although not all the effects are significant, it can be relevant to plot the means as follows:
Figure 2. Effects on Brand attitude, Product attitude, Purchase Intention
SponsoredPlus SponsoredMinus
Corporate
SponsoredPlusSponsoredMinus
Corporate
SponsoredPlus SponsoredMinus
Corporate
2
2,5
3
3,5
4
4,5
5
5,5
6
De
pe
ne
nt
vari
able
s
Blog Type
Main effects
Product Attitude
Brand Attitude
Purchase Intention
In conclusion:
- Brand attitude: Corporate < SponsoredPlus < SponsoredMinus
- Product attitude: Corporate < SponsoredMinus < SponsoredPlus
- Purchase intention: Corporate < SponsoredPlus < SponsoredMinus
32
4.3.2.2 Indirect effects: mediation effects
To analyze hypothesis 2 and 3, the PROCESS macro by Hayes (2014) with model 4 was used. The analysis
allows to check for indirect effects of Credibility and the Activation of Advertising Literacy on brand
attitude, product attitude, and purchase intention.
- Hypothesis 2: As a mediating variable, the credibility of the source influences the relation
between the blog type and brand attitude, product attitude, and purchase intention.
Hypothesis 2 assumes that credibility has a mediating effect on the relation between the Blog type and
the dependent variables. Since the output is quite extensive, only the model with Blog types Sponsored
Blog without Advertising Literacy and Corporate Blog as independent variable (Blog12), Brand attitude
as dependent variable and Credibility as a mediator will be elaborated. The results for all the Blog types
and dependent variables and a general conclusion on the mediation analysis will be provided below.
For the variable ‘Blog12’ (the Sponsored Blog without Advertising Disclosure vs the Corporate blog), the
results show no significant effect on the Credibility, t(62)=-4.45, p=.65. The total model proves that the
direct effect of the variable ‘Blog12’ on Brand attitude was almost significant (t(61)=-1.93,p=.058).
The Credibility did have a significant positive effect on the Brand attitude (t(61)=3.87, p=.0003).
Although there is a marginal significant main effect, the variable cannot be accepted as a mediator,
because the bootstrapped confidence interval includes 0 (-,2579 - 1571). However, as a predictor for the
Brand attitude the Credibility can be accepted. The effect of the variable ‘Blog12’ on Brand attitude,
with the mediation of Credibility, also showed a marginally significant difference (t(62)=-1.95, p=.056).
Nevertheless, hypothesis 2 is already partially rejected, pending the final conclusion below.
Figure 3. Mediation analysis: Blog type on Credibility
33
Table 6. Mediation analysis of Credibility
Blog12
Brand Attitude Product attitude Purchase intention
a Blog12 on Credibility t(62)=-4.45, p=.65 t(62)=-.45, p=.65 t(62)=-.45, p=.65
c' Blog12 on dependent variable t(61)=-1.93,p=.058 t(61)=-1.32, p=.19 t(61)=-1.70, p=.094
b Credibility on dependent variable t(61)=3.87, p=.0003 t(61)=1.35, p=.18 t(61)=2.32, p=.024
Total effect Blog12 on dependent variable t(62)=-1.95, p=.056 t(62)=-1.39, p=.17 t(62)=-1.77, p=.081
Confidence interval -,2579 ,1571 -,2100 ,0636 -,2534 ,1412
Blog02
Brand Attitude Product attitude Purchase intention
a Blog02 on Credibility t(59)=-.068, p=.95 t(59)=-.068, p=.95 t(59)=-.068, p=.95
c' Blog02 on dependent variable t(58)=-1.13,p=.26 t(58)=-1.92, p=.060 t(58)=-1.25, p=.22
b Credibility on dependent variable t(58)=4.37, p=.0001 t(58)=1.20, p=.24 t(58)=2.43, p=.018
Total effect Blog02 on dependent variable t(59)=-1.021, p=.31 t(59)=-1.92, p=.059 t(59)=-1.22, p=.23
Confidence interval -,1343 ,1270 -,0763 ,0496 -,1174 ,1152
Blog01
Brand Attitude Product attitude Purchase intention
a Blog01 on Credibility t(63)=.36, p=.72 t(63)=.36, p=.72 t(63)=.36, p=.72
c' Blog01 on dependent variable t(62)=.68,p=.050 t(62)=-.69, p=.49 t(62)=.30, p=.77
b Credibility on dependent variable t(62)=6.071, p=.000 t(62)=2.36, p=.021 t(62)=3.059, p=.0033
Total effect Blog01 on dependent variable t(63)=.76, p=.45 t(63)=-.57, p=.57 t(63)=.41, p=.68
Confidence interval -,2351 ,3383 -,1241 ,2379 -,2112 ,3292
In conclusion, for the variables for Blog type, there are no significant effects on the Credibility (p >.05).
The direct effect of the Blog type variables on the dependent variables was never significant (p >.05),
although at times marginally significant, for instance of ‘Blog12’ on Brand attitude, and ‘Blog02’ on
Product attitude.
The Credibility did have a significant positive effect on the dependent variables (p >.05), except in the
case for the variables Blog12 and Blog02 on the Product attitude. Therefore, Credibility is a predictor for
the dependent variables, except for the two cases stated above. However, Credibility cannot be
34
accepted as mediator, because there are no significant main effects and the bootstrapped confidence
intervals include 0.
The total effect of the variables Blog type on the dependent variables, with the mediation of Credibility,
showed no significant difference (p >.05), except for the cases of the variable ‘Blog12’ on Brand attitude
and Purchase intention, and ‘Blog02’ on Product attitude, which showed to be marginally significant.
Nevertheless, hypothesis 2 is now fully rejected.
35
- Hypothesis 3: As a mediating variable, the activation of advertising literacy influences the
relation between the blog type and brand attitude, product attitude, and purchase intention.
Hypothesis 3 states that the activation of advertising literacy will influence the relation between the
Blog type and the dependent variables. Again, the output is rather extensive. Therefore, the model with
the Sponsored Blog without Advertising Literacy vs Corporate Blog as independent variable (Blog12),
the Brand attitude as dependent variable, and Advertising literacy (AdverLi1) will be elaborated. The
complete table of results can be found below, as well as the general conclusion.
For the variable ‘Blog12’ (the Sponsored Blog without Advertising Disclosure vs the Corporate blog), the
results show no significant effect on the Advertising literacy, t(62)=-1.40, p=.17. The total model proves
that the direct effect of the variable ‘Blog12’ on Brand attitude was not significant (t(59)=-1.17,p=.25).
The Advertising literacy did have a significant positive effect on the Brand attitude (t(59)=4.17, p=.0001).
However, the variable cannot be accepted as a mediator, since the main effect was not significant and
the bootstrapped confidence interval includes 0 (-,5557 ,0586). However, as a predictor for the Brand
attitude the Credibility can be accepted. The effect of the variable ‘Blog12’ on Brand attitude, with the
mediation of Credibility, also showed a marginally significant difference (t(62)=-1.95, p=.056). Therefore,
hypothesis 3 is already partially rejected, pending the overall conclusion below.
Figure 4. Mediation analysis: Blog type on Advertising Literacy
36
Table 7. Mediation analysis of Advertising literacy (AdverLi1)
Blog12
Brand Attitude Product attitude Purchase intention
a Blog12 on AdverLi1 t(62)=-1.40, p=.17 t(62)=-1.40, p=.17 t(62)=-1.40, p=.17
c' Blog12 on dependent variable t(59)=-1.17,p=.25 t(59)=-.45, p=.66 t(59)=-1.65, p=.10
b AdverLi1 on dependent variable t(59)=4.17, p=.0001 t(59)=3.65, p=.0006 t(59)=.78, p=.44
Total effect Blog12 on dependent variable t(62)=-1.95, p=.056 t(62)=-1.39, p=.17 t(62)=-1.77, p=.081
Confidence interval -,5557 ,0586 -,6784 ,0184 -,3190 ,2549
Blog02
Brand Attitude Product attitude Purchase intention
a Blog02 on AdverLi1 t(59)=-1.023, p=.31 t(59)=-1.023, p=.31 t(59)=-1.023, p=.31
c' Blog02 on dependent variable t(58)=-1.13,p=.26 t(56)=-1.61, p=.11 t(56)=-1.15, p=.25
b AdverLi1 on dependent variable t(56)=4.097, p=.0001 t(56)=2.47, p=.017 t(56)=.82, p=.36
Total effect Blog02 on dependent variable t(56)=-1.021, p=.31 t(59)=-1.92, p=.059 t(59)=-1.22, p=.23
Confidence interval -,2006 ,0744 -,2227 ,0342 -,1590 ,1308
Blog01
Brand Attitude Product attitude Purchase intention
a Blog01 on AdverLi1 t(63)=.34, p=74 t(63)=.34, p.74 t(63)=.34, p=74
c' Blog01 on dependent variable t(60)=.83, p=.41 t(60)=-.61, p=.54 t(60)=.48, p=.64
b AdverLi1 on dependent variable t(60)=6.17, p=.00 t(60)=2.37, p=.021 t(60)=1.29, p=.20
Total effect Blog01 on dependent variable t(63)=.76, p=.45 t(63)=-.57, p=.57 t(63)=.41, p=.68
Confidence interval -,2909 ,3585 -,2322 ,2245 -,2897 ,2747
In conclusion, for the variables for Blog type, there are no significant effects on ‘AdverLi1’ (p >.05). The
direct effect of the Blog type variables on the dependent variables also was never significant (p >.05),
except in the case of the variable ‘Blog12’ on Purchase intention a marginal significant difference was
found.
‘AdverLi1’ did have a significant positive effect on the dependent variables (p >.05), except in any of the
cases for Purchase intention. Therefore, ‘AdverLi1’ is a predictor for the dependent variables, except for
the case stated above. Nevertheless, ‘AdverLi1’ cannot be accepted as mediator, because there are no
significant main effects and the bootstrapped confidence intervals include 0.
37
The total effect of the variables of Blog type on the dependent variables, with the mediation of
‘AdverLi1’, showed no significant difference (p >.05), with the exception of ‘Blog12’ on Brand attitude
and Purchase intention, and ‘Blog02’ on Product attitude. Nevertheless, hypothesis 3 is partially
rejected.
38
Table 8. Mediation analysis of Advertising literacy (AdverLi2)
Blog12
Brand Attitude Product attitude Purchase intention
a Blog12 on AdverLi2 t(62)=1.31, p=.19 t(62)=1.31, p=.19 t(62)=1.31, p=.19
c' Blog12 on dependent variable t(59)=-1.17,p=.25 t(59)=-.45, p=.66 t(59)=-1.65, p=.10
b AdverLi2 on dependent variable t(59)=.28, p=.78 t(59)=-.20, p=.84 t(59)=.75, p=.46
Total effect Blog12 on dependent variable t(62)=-1.95, p=.056 t(62)=-1.39, p=.17 t(62)=-1.77, p=.081
Confidence interval -,5557 ,0586 -,6784 ,0184 -,3190 ,2549
Blog02
Brand Attitude Product attitude Purchase intention
a Blog02 on AdverLi2 t(59)=.55, p=.58 t(59)=.55, p=.58 t(59)=.55, p=.58
c' Blog02 on dependent variable t(58)=-1.13,p=.26 t(56)=-1.61, p=.11 t(56)=-1.15, p=.25
b AdverLi2 on dependent variable t(56)=.39, p=.70 t(56)=.54, p=.59 t(596)=.93, p=.36
Total effect Blog02 on dependent variable t(56)=-1.021, p=.31 t(59)=-1.92, p=.059 t(59)=-1.22, p=.23
Confidence interval -,2006 ,0744 -,2227 ,0342 -,1590 ,1308
Blog01
Brand Attitude Product attitude Purchase intention
a Blog01 on AdverLi2 t(63)=-.67, p=51 t(63)=-.67, p=.51 t(63)=-.67, p=.51
c' Blog01 on dependent variable t(60)=.83, p=.41 t(60)=-.61, p=.54 t(60)=.48, p=.64
b AdverLi2 on dependent variable t(60)=1.20, p=.23 t(60)=1.47, p=.15 t(60)=1.86, p=.067
Total effect Blog01 on dependent variable t(63)=.76, p=.45 t(63)=-.57, p=.57 t(63)=.41, p=.68
Confidence interval -,2909 ,3585 -,2322 ,2245 -,2897 ,2747
Again, for the variables for Blog type, there are no significant effects on ‘AdverLi2’ (p >.05). The direct
effect of the Blog type variables on the dependent variables also was never significant (p >.05), except in
the case of the variable ‘Blog12’ on Purchase intention a marginal significant difference was found.
‘AdverLi2’ had no significant effect on the dependent variables (p >.05), except in the case for the
variable ‘Blog01’ on the Purchase intention. Therefore, ‘AdverLi1’ is only a predictor in the case stated
above. Therefore, ‘AdverLi1’ cannot be accepted as mediator, because there are no significant main
effects and the bootstrapped confidence intervals include 0.
39
The total effect of the variables of Blog type on the dependent variables, with the mediation of
‘AdverLi1’, showed no significant difference (p >.05), with the exception of ‘Blog12’ on Brand attitude
and Purchase intention, and ‘Blog02’ on Product attitude. Nevertheless, hypothesis 3 is again partially
rejected.
40
Table 9. Mediation analysis of Advertising literacy (AdverLi3)
Blog12
Brand Attitude Product attitude Purchase intention
a Blog12 on AdverLi3 t(62)=1.74, p=.087 t(62)=1.74, p=.087 t(62)=1.74, p=.087
c' Blog12 on dependent variable t(59)=-1.17,p=.25 t(59)=-.45, p=.66 t(59)=-1.65, p=.10
b AdverLi3 on dependent variable t(59)=-1.17, p=.25 t(59)=-1.69, p=.097 t(59)=.034, p=.97
Total effect Blog12 on dependent variable t(62)=-1.95, p=.056 t(62)=-1.39, p=.17 t(62)=-1.77, p=.081
Confidence interval -,5557 ,0586 -,6784 ,0184 -,3190 ,2549
Blog02
Brand Attitude Product attitude Purchase intention
a Blog02 on AdverLi3 t(59)=.82, p=.42 t(59)=.82, p=.42 t(59)=.82, p=.42
c' Blog02 on dependent variable t(58)=-1.13,p=.26 t(56)=-1.61, p=.11 t(56)=-1.15, p=.25
b AdverLi3 on dependent variable t(58)=.39, p=.70 t(56)=-.44, p=.66 t(56)=.052, p=.96
Total effect Blog02 on dependent variable t(56)=-1.021, p=.31 t(59)=-1.92, p=.059 t(59)=-1.22, p=.23
Confidence interval -,2006 ,0744 -,2227 ,0342 -,1590 ,1308
Blog01
Brand Attitude Product attitude Purchase intention
a Blog01 on AdverLi3 t(63)=-.68, p=.50 t(63)=-.68, p=.50 t(63)=-.68, p=.50
c' Blog01 on dependent variable t(60)=.83, p=.41 t(60)=-.61, p=.54 t(60)=.48, p=.64
b AdverLi3 on dependent variable t(60)=.40, p=.69 t(60)=-.64, p=.52 t(60)=-.51, p=.61
Total effect Blog01 on dependent variable t(63)=.76, p=.45 t(63)=-.57, p=.57 t(63)=.41, p=.68
Confidence interval -,2909 ,3585 -,2322 ,2245 -,2897 ,2747
Finally, there is a significant effect of the variable ‘Blog12’ on ‘AdverLi3’ for all of the dependent
variables, but for none of the other independent variables. The direct effect of the Blog type variables
on the dependent variables also was never significant (p >.05), with exception to the case of ‘Blog12’ for
the Purchase intention where a marginal significance was found.
‘AdverLi3’ did not have a significant positive effect on the dependent variables (p >.05), except in the
case for the variable ‘Blog12’ on the Product attitude. Therefore, AdverLi3 is only a predictor in the case
stated above. Nevertheless, Advertising literacy cannot be accepted as mediator, because there are no
significant main effects and the bootstrapped confidence intervals include 0.
41
The total effect of the variables on Blog type on the dependent variables, with the mediation of
Advertising literacy, showed no significant difference (p >.05), except for ‘Blog12’ on Brand attitude and
Purchase intention, and ‘Blog02’ on Product attitude.
In conclusion, with regards to the previous, hypothesis 3 is fully rejected. There was no mediating effect
of any of the variables for Advertising literacy.
42
4.3.2.3 Covariates analysis
To discover whether the cohesion between the independent variables and dependent variables, is
influenced by covariates, is tested using an Multivariate ANCOVA analysis. To have a complete model of
the reality, the mediators Credibility and Advertising literacy are included. In the survey the potential
covariates were questioned in the form of whether they read fashion blogs (variable Reader), whether
they follow fashion trends (variable Follower), and how involved they are with the product
(Involvement). These were all included for a complete analysis.
First, the interaction effect of the potential covariates and the Blog type are analyzed. The null
hypothesis states that there is no interaction effect. The results show that none of the interaction
variables is significant, except for a marginal significance in the interaction between Blog type and
Reader for Product attitude, and Blog type and Follower for Brand attitude. In other words, there is
marginally significant interaction effect of the cases stated above. The results can be summarized as
follows:
Table 10. Covariates analysis: interaction effect
Brand attitude Product attitude Purchase intention
Blog type x Reader P = .75 P = .068 P = .33
Blog type x Follower P = .054 P = .49 P = .45
Blog type x Involvement P = .31 P = .67 P = .28
Blog type x Reader x Follower x Involvement P = .30 P = .28 P = .84
The ANCOVA analysis checks whether the variable Blog type have a statistical significant difference in
means of the dependent variables once the model is controlled for covariates. For the main effect, the
One-way ANOVA already showed no significant effect of the Blog type on any of the dependent
variables. However, the ANCOVA analysis shows that the model becomes significant for the dependent
variable Product attitude (p = .021) and marginally significant for Brand attitude (p= .082). In that case,
there is a statistically significant difference between the adjusted means for Product attitude and Brand
attitude when including the covariates.
43
Table 11. One-way ANOVA vs Multivariate ANCOVA
Brand attitude Product attitude Purchase intention
One-way ANOVA P = .19 P = .14 P = .24
Multivariate ANCOVA P = .082 P = .021 P = .19
The results show that none of the covariates are significant, except for the Involvement, which can
account for 12% of the variability in the Brand attitude and 39% in the Product attitude. The p and
partial eta squared values for the covariates can be summarized as follows:
Table 12. Covariate Involvement
Brand attitude Product attitude Purchase intention
Reader P= 1.0, Eta sq = .00 P=.44, Eta sq=.007 P=.91, Eta sq=.00
Follower P=.89, Eta sq=.00 P=.45, Eta sq=.007 P=.39, Eta sq=008
Involvement P=.001, Eta sq=.12 P=.00, Eta sq=.39 P=.016, Eta sq=.063
In conclusion, including the covariate Involvement in the model results in the decrease of the P value for
Product attitude and Brand attitude, making the relation between the Blog type and those dependent
variables significant. The main effect has changed with the inclusion of Involvement.
Additionally, the effect of the Blog types was analyzed on the covariates, as if they were dependent
variables. However, the results show no statistically significant effect, which can be summarized as
follows:
Table 13. Direct effect Blog type on covariates
Reader P=.76
Follower P=.54
Involvement P=.49
44
4.3.2.4 Interaction effect: moderation
To test the interaction effect between the Blog type and whether the respondent knew the brand
Balmain (Brand Awareness) before taking the survey. Hypothesis 5 states that Brand awareness has a
moderating effect on the relation between the Blog types and the dependent variables Brand attitude,
Product attitude, and Purchase intention, which is tested using the PROCESS macro by Hayes. In the
model the variables ‘Blog12’, ‘Blog02’, and ‘Blog01 were used as independent variables, the Brand
attitude, Product attitude, and Purchase intention as dependent variables, and the Brand awareness as
moderator.
First the variable ‘Blog12’’ was used to test the moderation effect on the model with the Blog types
Sponsored Blog without Advertising Disclosure vs Corporate Blog. The results can be summarized as
follows:
Table 14. Moderation Blog12
Blog12
Brand attitude Product attitude Purchase intention
Predictor Blog12 F(3, 60)= -1.97, p=.054 F(3, 60)=-1.59, p=.12 F(3, 60)=-1.79, p=.079
Predictor Brand Awareness F(3, 60)= -1.77, p=.083 F(3, 60)=-3.12, p=.0028 F(3, 60)= -1.52, p=.13
Interaction Blog12 x Brand Awareness F(3, 60)=.74, p=.46 F(3, 60)=.87, p=.39 F(3, 60)= .12, p=.90
Overall model F(3, 60)= 2.026, p=.12 F(3, 60)=6.58, p=.0006 F(3, 60)=1.38, p=.26
The variable ‘Blog12’ only had a significant effect on the model for Brand attitude and Purchase
intention. Brand awareness was only significant for Brand attitude and Product attitude. In other words,
only in these cases were they a reliable predictor for the dependent variable. The overall model was
only significant for Product attitude, which had a explanatory power of 22%. However, since the
interaction effect was not significant in any case, one can conclude that Brand awareness has no
moderating effect. In other words, hypothesis 5 is already partially rejected.
45
With the variable ‘Blog02’ in the analysis, the moderation effect was analyzed for the Sponsored Blog
with Advertising Disclosure vs Corporate Blog. The results can be presented as follows:
Blog02
Brand attitude Product attitude Purchase intention
Predictor Blog02 F(3, 57)= -.88, p=.38 F(3, 57)= -1.70, p=.094 F(3, 57)= -1.080, p=.28
Predictor Brand Awareness F(3, 57)=-1.53, p=.13 F(3, 57)=-2.21, p=.031 F(3, 57)=-1.70, p=.095
Interaction Blog02 x Brand Awareness F(3, 57)= .71, p=.48 F(3, 57)= .30, p=.77 F(3, 57)=.41, p=.68
Overall model F(3, 57)= 1.14, p=.34 F(3, 57)= 3.28, p=.027 F(3, 57)=1.17, p=.33
The variable ‘Blog12’ and Brand awareness only had a significant effect on the model for Product
attitude.In other words, only in these cases were they a reliable predictor for the dependent variable.
The overall model was also only significant for Product attitude, which had a explanatory power of 17%.
However, the interaction effect was not significant for Product attitude, nor for in any other case.
Therefore, no moderation effect of Brand awareness is found on the relation between Blog02 and the
dependent variables. Again, hypothesis 5 is already partially rejected.
Finally, Brand awareness is also analyzed for its potential moderating effect between the two Sponsored
Blogs, using the variable ‘Blog01’. Again, the results can be found below:
Blog01
Brand attitude Product attitude Purchase intention
Predictor Blog01 F(3, 61)=1.021, p=.31 F(3, 61)= -.088, p=.93 F(3, 61)=.62, p=.54
Predictor Brand Awareness F(3, 61)= -2.39, p=.02 F(3, 61)= -3.49, p=.0009 F(3, 61)=-1.82, p=.073
Interaction Blog01 x Brand Awareness F(3, 61)= .092, p=.93 F(3, 61)= -.55, p=.58 F(3, 61)=.30, p=.76
Overall model F(3, 61)=2.069, p=.11 F(3, 61)= 4.70, p=.0051 F(3, 61)=1.18, p=.32
Here, the variable ‘Blog12’ has no significant effect on either one of the dependent variables. Brand
awareness, on the other hand, does, on all of them. Thus, only Brand awareness is a reliable predictor
for all the dependent variables. Again, the overall model was also only significant for Product attitude,
which had a explanatory power of 25%. However, the interaction effect was not significant for any of
the dependent variables. Again, there is no moderation effect of Brand awareness. With regard to the
previous conclusions, hypothesis 5 is fully rejected.
46
5. Discussion and conclusion
In this dissertation, the influence of Blogs types on the effectiveness of advertising in a blog post was
analyzed. Whether there is an impact on brand attitude, product attitude, and purchase intention was
researched. In order to study these effects, three conditions were compared: a Sponsored Blog with
Advertising Disclosure, a Sponsored Blog without Advertising Disclosure, and a Corporate Blog.
5.1 Discussion of the results
First, the main effect was analyzed to check the influence of the Blog types on the brand attitude,
Product attitude, and Purchase intention. Research shows that eWOM originating from a peer, results in
more positive brand attitude, product attitude, and purchase intention (Lee, and Koo, 2012). This theory
was partially confirmed in this dissertation. Brand attitude and purchase intention were marginally
significantly different for the comparison between the Sponsored Blog without Advertising Disclosure
and the Corporate Blog, resulting in higher effectiveness for the Sponsored Blog without Advertising
Disclosure. However, the product attitude was not significantly different between the two types. When
including an advertising disclosure in the Sponsored Blog, there was only a marginal significant
difference for the product attitude, in comparison to the Corporate Blog. In the analysis between the
two sponsored blogs, there were no significant dependent variables. Concluding that there is no
significant difference between them in relation to the dependent variables.
Secondly, a mediation analysis was applied to the variables of Credibility and Advertising Literacy for
their effect on the relation between the Blog types and brand attitude, product attitude, and purchase
intention.
Research about credibility shows that the extent to which a reader trusts the blogger, influences their
attitude towards the blog, blogger, and content (Ohanian 1991; Petty and Cacioppo 1986). Hung and Li
(2007) described the relation between a reader and a blogger, which can positively affect purchase
intention. However, in the results, there is no proof for the mediating effect of credibility. As mentioned
above, there were no significant effects of the Blog types on Crediblity. Since the confidence interval
included 0 each time, the conclusion was drawn that Credibility had no mediating effect. Besides that,
the average credibility of the Blog type is 4.62, which is between ‘Neutral’ and ‘Rather agree’.
47
Advertising Literacy was analyzed using three scales, which resulted in three variables: AdverLi1,
AdverLi2, and AdverLi3. According to the research of Friestad and Wright (1994), the activation of
advertising literacy would more likely occur when readers are being made aware of the advertising
intentions. Therefore, when including an advertising disclosure, the effects of the Blog type Sponsored
Blog should decrease. However, in the analysis there was no indication of a mediation, for none of the
Advertising Literacy variables, because their confidence intervals included 0 each time. On the other
hand, it is not surprising, since the activation of advertising literacy was not significantly different for the
different Blog types.
A covariate analysis was applied to three potential covariates: Reader, Follower, and Involvement. This
analysis showed that Involvement was the only covariate that had a significant overshadowing effect on
the relation between the Blog type and the Product attitude and a marginally significant effect on the
Brand attitude. The outcome of this analysis is consistent with the Elaboration Likelihood Model. ELM
states that high product involvement results in better attitudes. (Petty, JT Cacioppo, 1986) The results
validate this theory, since the covariate Involvement was significant for Product attitude and Brand
attitude.
Finally, the variable ‘Brand Awareness’ was initially integrated as a control variable in the survey.
Nevertheless, because of its possible influence, a moderation analysis was performed to measure
whether or not the reader knew Balmain before the survey, affected the relation between the Blog
types and brand attitude, product attitude, and purchase intention. Research by Laroche, Kim and Zhou
(1996) about brand awareness shows that familiarity with a brand, results in a more positive attitude
towards a brand. The results, however, in the analysis show no moderation for any of the independent
variables, since the interaction variables are not significant in any case. In conclusion, the results only
show a marginal significant difference between the Sponsored Blog without Advertising Disclosure and
Corporate Blog in brand attitude and purchase intention. Between the Sponsored Blog with Advertising
Disclosure and Corporate Blog, there is a marginal significant effect in product attitude. However, this
effect was the opposite direction of which the hypothesis stated. Between the two Sponsored Blogs no
significant effect was found.
5.2 Conclusion
The research of Lee and Youn (2009) also found no higher significant effectiveness of a independent
source in comparison to content of a company. As an explanation, the authors proposed that the
respondents saw through the intentions of the independent source. The lack of a significant main effect,
48
in this dissertation, may be also attributed to the fact that there was a large similarity between the types
of Blogs, and non existence of a significant difference in credibility between the Blog types. This means
for the three conditions, especially between the two sponsored blogs, the effectiveness is almost
identical.
The inexistence of a moderating effect of Brand Awareness is probably connected to the fact that there
is almost no significant difference between the brand attitude, product attitude, and purchase intention
for the different Blog types.
Both the mediation for both Credibility as well as Advertising literacy were not significant. Feedback
from the blogger No Glitter No Glory might give a possible explanation for the insignificance of
Credibility. Because the respondents knew the blog was in the context of a dissertation, they knew that
the stimuli Blogs were fictive. Therefore, the mean Credibility also probably suffered. The fact that the
Advertising literacy had no mediating effect can be ascribed to the fact that readers recognized all blogs,
even those without advertising disclosure, to be sponsored. The blog post might also be too focused on
the product, which may be of putting for the reader.
6. Theoretical and managerial
implications
In terms of a theoretical implication, the graph does indicate that sponsored blogs were more effective
in comparison to the corporate blogs. However, since there was no significant difference, no conclusions
should be drawn.
However, for the business environment, one can conclude that integrating either one of the blogs, in the
online marketing strategy, will be beneficial. Companies can both invest in sponsoring bloggers, or start
a blog themselves, with practically the same results.
49
7. Limitations and further research
None of the hypotheses led to proving their respective theories. However, there are limitations to this
research, which impacted the outcome.
First of all, although the data collection was done using respondents that were interested in (luxury)
fashion, people who worked in fashion, bloggers, etc., the results did not reflect the hypothesized
effects. A possible explanation might be that the respondents were not exactly the target group. Many
of them were chosen based on their appearance (fashionable) and their location (luxury shopping
street), but might not exactly have been the target market for the product. Future research should try to
gather respondents known to buy luxury clothing, like Balmain.
Secondly, the blogs’ credibility had to be created artificially, through a profile. In reality, readers’ trust
towards a blog is based on previous experience, and a long time relationship with the blogger as a
follower. The blogs also do not have an archive of previous blog posts. In the case the reader saw the
blog for the first time, he or she might want to do some research about the blogger’s authenticity, style,
collaborations, etc. In this research, that was not possible, which restrained the ability to trust the blog.
Next to that, a lot of respondents probably noticed that the blog was fictitious, keeping in mind it was
for research purposes. In that case, they would have had to feign their attitudes and intentions, which
also led to subjective responses. A possible solution to these problems is a collaboration with a existing,
credible, and known blogger. Nevertheless, in that type of research, the researchers should take the
attitude towards the blogger into account, which would also lead to distortions in the results.
Thirdly, the data was checked for realistic fill-out time frames, the expectation for the respondents to
read the blog post thoroughly, examine the layout carefully, and read the profile of the blogger, might
have been to extensive. The blog post was rather long, which might have caused respondents to give up,
and start the survey before looking at the blog in detail. In further research, this problem might also
occur, which is why the collection of respondents is of great importance. The respondents need to be
entertained, their attention needs to be captured with something they are interested in. Therefore,
familiarizing with the people who will be surveyed is essential to picking the right respondents.
A final suggestion for further research is the integration of other independent variables such as: the
amount of arguments and the amount of personal-disclosure. Next to that, another approach would be
the collaboration between the company, blogger, and researcher, in the shape of a pilot study and
comparison of a corporate blog of the company, and sponsored blog of the blogger.
VIII
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Addendum
Attachment 1. Stimuli
- Blogpost:
The Leather Jacket of Your Dreams
Since the brand's revival in 2011 by Olivier Rousteing, Balmain has been receiving more and more
attention from fashion magazines, runways, celebrities, and influencers in the industry, because of its
retro looks and new orientation towards the finer aspects of French couture.
For the spring collection of 2015, we see a lot of monochrome, see-through looks. A futuristic influence,
as seen in several other high-end, also takes the stage, while creating elegant and smart looks. Next to
elegant, boyish silhouettes for the ladies, and smart colorful pieces for the men, there are of course the
recurring pieces like the to-die-for leather jacket. As a true staple piece, known for its timelessness and
quality, the jacket is both for men and women a must have in your closet.
Several different styles are brought into the pallet, with both classic, punk, short, and longer styles,
offering a jacket for every taste. Whether you like to wear it with biker boots to toughin’ up your look,
or wear it on a skirt or suit, with heels or oxfords for a more classy ensemble, the biker jacket will have a
prominent place in your outfits. Because of its versatile nature, you can wear it during those warmer
spring days, or chilly summer nights, or in general with every single item in your closet you already own.
Price Balmain biker jacket (Farfetch): € 2945 – 3480
- Anna-Lucy Aime Le Luxe Profile :
Anna-Lucy, 26 years old, studied Marketing, and started working in fashion soon after as a stylist. Since
2012, she is a Belgian based online influential, trendwatcher and blogger. Above all, she is a fashion
lover, dedicated to providing premium and unique content on a international platform, and spreading
the broad range of knowledge she has acquired over the years.
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- Balmain Aime Le Luxe Profile :
Balmain is a haute couture fashion house founded by Pierre Balmain. Since its establishment in 1964,
Balmain has dressed various celebrities, stars, and other influentials, and remains a respected name in
the fashion industry until this very day. With the writing of the blog, Balmain enters a new era of
connecting, engaging and communicating with the customer, all the while maintaining its position as
luxury fashion brand.
The Blogs appear in the following order:
- Sponsored Blog without Advertising Disclosure
- Sponsored Blog with Advertising Disclosure
- Corporate Blog
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Bijlage 1.5
Bijlage 2.1
Attachment 2. Research questionnaire
Bijlage 2.2
Bijlage 2.3
Bijlage 2.4
Bijlage 2.5
Bijlage 2.6
Bijlage 2.7