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    Human Relations

    DOI: 10.1177/00187267060641712006; 59; 267Human Relations 

    Kevin DanielsRethinking job characteristics in work stress research

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    Rethinking job characteristics in work stress research

     Kevin Daniels

    A B S TRA C T In work stress research, consistent relationships between job charac-

     teristics and strain have not been established across methods for 

    assessing job characteristics. By examining the methods used to

    assess job characteristics in work stress research, I argue that this is

    because different methods are assessing interrelated, yet distinct,

    facets of job characteristics: latent, perceived and enacted facets. The

    article discusses the implications for work stress research of differ-

    entiating these facets of job characteristics.

    KE YW ORD S  job characteristics measurements stress stressors

    Within post-positivist approaches to organizational research, methods areseen as fallible and triangulation of results across methods is recommended

    (e.g. Cook & Campbell, 1979). But what happens if researchers’ presump-

    tions about multi-method triangulation are wrong and different methods

    produce diverging results? What if different methods are assessing different

    yet interrelated phenomena? Could a critical examination of methods used

    evoke more insight and help develop more sophisticated approaches to

    research and theory? By examining methods used in research on work stress

    to assess the causes of strain, it is the aim of this article to illustrate how this

    might be so.The methods used in this arena are important for several reasons. First,

    many dominant theoretical models that guide work stress research accord

    psychosocial aspects of the work environment, known as job characteristics,

    2 6 7

    Human Relations

    DOI: 10.1177/0018726706064171

    Volume 59(3): 267–290

    Copyright © 2006

    The Tavistock Institute ®

    SAGE Publications

    London, Thousand Oaks CA,

    New Delhi

    www.sagepublications.com

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    with powerful causal status in determining health reactions, well-being and

    job satisfaction (e.g. Karasek & Theorell; 1990; Warr, 1987). Such environ-

    mental aspects are sometimes also known as stressors. Second, in spite of 

    this assumed causal status, there is little evidence of triangulation of results

    across methods assessing job characteristics (Spector & Jex, 1991; Spector

    et al., 1988). Third, it is not clear whether the dominant method used to

    assess job characteristics – the self-report questionnaire – is better than other

    methods at assessing the causes of work-related strain (Morrison et al.,

    2003), or whether other methods actually assess the same constructs as self-

    reports (Spector, 1992, 1994).

    Noting weaknesses with how self-reports and the alternatives have

    been used, I propose a multi-level approach to conceptualizing job charac-teristics, comprising latent, perceived and enacted facets. This differentiation

    of job characteristics has implications for the methodologies stress

    researchers employ, the interpretation of results and the research questions

    they might begin to ask.

    The contributions of this article are twofold. First, and most generally,

    the article illustrates the need for researchers to think carefully on the con-

    sonance of theory, operational definitions and methods, lest attempts at

    triangulation of findings lead to conflicting results emerging in an area of 

    research. Second, and more specifically, the article shows that by carefullyconsidering different approaches to measuring job characteristics, it is

    possible to develop a much richer appreciation of how organizational, social

    and individual factors combine to influence what is experienced at work, and

    how this might relate to the processes that produce strain.

    Self-reports and alternatives

    Self-report measures of job characteristics have become the predominant

    means through which researchers link objective working conditions to

    psychosomatic and psychological strain. The assumption underlying their

    use is that perceptual measures reflect, at least partially, the objective work

    environment: that is, the objective work environment is thought to cause

    perceptions of work.1 Some have argued that self-report measures can be

    problematic and their use can lead to unwarranted inferences from research

    into work, strain and health (e.g. Spector, 1994). Some of the major criti-

    cisms of self-report measures of job characteristics include:

    1) Self-reports are subject to a number of biases, including transient mood

    effects, that systematically bias both reports of job characteristics and

    outcome measures (Brief et al., 1995; Spector, 1992);

    Human Relations 59(3)2 6 8

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    2) Self-reports and strain are mutually influenced by trait affect or

    temperament – failure to control for trait affect seriously undermines

    the strength of conclusions drawn from studies using self-reports (e.g.

    Brief et al., 1988);

    3) Self-reports of job characteristics are influenced, through social inter-

    action, by the attitudes, opinions and perceptions of others, rather than

    just the nature of the job itself (Salancik & Pfeffer, 1978).

    There are several alternative strategies to simple self-reports of job

    characteristics. Examples are: a) using someone other than the incumbent to

    rate the incumbent’s job characteristics, such as managers, colleagues or

    researchers; b) using aggregate ratings of a job across several incumbents; c)using large databases or documents that contain information on the charac-

    teristics of a particular class of job; and d) assessing the impact of interven-

    tions designed to change job characteristics. The assumption underlying these

    strategies is that the objective work environment, at least to some extent, is

    reflected in the assessments obtained.

    Others’ ratings of focal jobs (e.g. Fox et al., 1993). The logic here is

    that others’ reports are not subject to the same perceptual biases that limit

    the strength of conclusions drawn from studies using self-reports of job

    characteristics. Other raters could include managers, colleagues or membersof the research team.

    However, manager and colleague ratings may become subject to other

    biases – such as ‘halo’ or ‘horn’ effects – thus introducing a new set of 

    problems to interpreting results. For example, some evidence indicates that

    people exhibiting high strain are rated by others as being less attractive (Staw

    et al., 1994), which may generalize through stereotyping effects to awarding

    those people high ratings on undesirable job characteristics (e.g. make little

    effort to participate in decisions, self-impose heavy workloads). In thisexample, the ‘horn’ effect has served to inflate an association between

    measures of job characteristics and strain.

    Observers from the research team have also been used to assess job

    characteristics (e.g. Frese, 1985). One problem here is that independent

    observers rarely get the chance to spend extended periods with the target

    person. Unless every possible job behaviour is witnessed within the period

    of observation, then the observer is likely to miss some potentially import-

    ant aspects of the job. Another limitation is that independent observers may

    not be allowed to witness clandestine or otherwise sensitive job activities –a criticism that can also apply to managers and colleagues. Also, unless

    observers spend many months in an organization, they could remain largely

    unaware of the social context and perhaps misattribute some behaviour from

    their own frame of reference, rather than the frame of reference of those

    Daniels Rethinking job characteristics in work stress research 2 6 9

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    observed. For example, what passes for ‘bullying’ or ‘mobbing’ may be very

    different in a military context to that of a university, and might vary from

    person to person.

    Perhaps the most important limitation is that independent observers

    are only able to observe manifest behaviour – such as hours spent in work

    – that are just some of the elements that a job comprises. Independent

    observers are less likely to be able to obtain an accurate picture of cognitive

    processes such as planning and decision-making – yet such cognitive activity

    might be critical to how job characteristics such as complexity and autonomy

    come to be. This criticism also applies to managers’ and colleagues’ ratings.

    What we can be sure of, however, is that rating by observers – whether

    managers, colleagues or researchers – represents someone’s perception of thefocal job. These perceptions are unlikely to reflect cognitive activity at all

    accurately and possibly not reflect sensitive activities or activities incumbents

    keep hidden for other purposes.

    Aggregate ratings. Another approach to remove biases inherent in self-

    reports is to aggregate ratings from several individuals, all in the same job

    (e.g. Vahtera et al., 1996). The assumption underlying aggregation is that

    variations in perceptions of jobs will be cancelled out (Jones & James, 1979),

    therefore reducing the impact of biases associated with particular individuals.

     Jones and James provide four criteria for justifying aggregation:

    (a) significant differences in aggregated or mean perceptions across

    different organisations or subunits; (b) interperceiver reliability or

    agreement; (c) homogeneous situational characteristics (e.g., similarity

    of context, structure, job type, etc.); and (d) meaningful relationships

    between the aggregated score and various organisational, subunit, or

    individual criteria.

    (Jones & James, 1979: 208)

    Criteria a) and b) can be demonstrated empirically in any study,

    through analysis of variance techniques and correlational indices of inter-

    rater reliability respectively. Criterion c) can be justified through examining

    people with the same contractual status, job descriptions, etc. However, the

    greatest question concerns the theoretical interpretation of results inherent

    in criterion d). If a significant relationship is found between an aggregated

    measure of work demands and individual measures of strain, it cannot be

    concluded that ‘objective’ work demands influence an individual’s strain.There exist commonalties of perception in any social grouping (Thompson

    et al., 1990), and perceptions of job characteristics might be conditioned by

    social information processing to some extent (Salancik & Pfeffer, 1978).

    Human Relations 59(3)2 7 0

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    Moreover, there is also evidence that affective tone in work groups is linked

    to convergence in trait affect in work groups (George, 1990), indicating that

    aggregation might further compound some of the biases inherent in self-

    reports of job characteristics.

    It is then possible that any association between strain and aggregated

    measures of job characteristics reflects a shared perception of job character-

    istics, rather than any ‘objective’ reality. This is not to say that this approach

    is meaningless, only that aggregated measures by themselves cannot help

    construct unambiguous interpretations of results concerning objective job

    characteristics.

    It might be argued that where there is no direct contact between incum-

    bents – such as where they are situated in different locations or on differentshifts – then this social information processing explanation may not be valid

    (Semmer et al., 1996). However, common institutional factors present at

    national, sector, industry and organizational levels will serve to condition

    perceptions within physically separated jobs (Scott, 1995). For example,

    selection of similar people, and then socialization into particular job roles

    through the actions of others and common experiences (e.g. through contact

    with managers, trades unions, trainers, and educators), inculcates and

    reinforces particular perceptions of work (Schneider, 1987). This socializa-

    tion process might be especially strong in institutionalized arenas with stronglegislation, strong organizational cultures and proscribed training or

    education (such as medical professions, accountancy, strongly unionized

    industries; DiMaggio & Powell, 1983).

    Using large databases or documents. Another approach is to determine

    job characteristics from documentary evidence associated with job titles. In

    the United States, the Dictionary of Occupational Titles (DOT) and, more

    recently, the O*NET databases allow researchers to match job titles to a

    number of job characteristics in an extensive database of job analyses (Roos& Treiman, 1980, used by Spector & Jex, 1991; Spector et al., 1995).

    Whilst attractive given the rigour with which such databases are assem-

    bled and their breadth of coverage, there exist problems with these methods

    too. First, job analyses may quickly become out of date, especially in current

    economic environments of hypercompetition, accelerated innovation,

    frequent organizational change and rapid developments in information tech-

    nology. However, perhaps the greatest limitation is that national databases

    represent the occupation not the job – that is local peculiarities of a job are

    ignored, especially changes individuals themselves make to their job charac-teristics (Parker et al., 2001; Wrzesniewski & Dutton, 2001). This makes it

    difficult to draw unambiguous inferences about the stressors associated with

    a particular job in a particular organization.

    Daniels Rethinking job characteristics in work stress research 2 7 1

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    A related approach to determine job characteristics is for job descrip-

    tions to be rated by expert raters (either job incumbents not sampled, HR

    managers or the research team, e.g. Spector et al., 1995). The same problems

    of inferring cognitive processes and social norms could apply here as to

    reports from managers, colleagues or observers, as could problems concern-

    ing job descriptions becoming out of date if a given context changes.

    Therefore, databases and documents do not necessarily provide pure

    reflections of ‘objective’ job characteristics. Rather such methods may better

    reflect a job as it has become institutionalized in documentary form, rather

    than how a job is evolving in the present.

    Interventions. One solution to problems with self-report, other-report,

    aggregation, databases and documentary measures is to examine interven-tions only. In this approach, a structural, managerial or technological change

    is made in an organization that is hypothesized to change job characteristics

    so as to make the job more psychosocially ‘hygienic’ (e.g. increase levels of 

    job control; Wall et al., 1986). If strain reduces, then it could be concluded

    this is a result of the changes in job characteristics bought about by organiz-

    ational change. Notwithstanding problems of design associated with inter-

    vention studies (Cook et al., 1990), there are at least three other problems

    with this approach.

    First, from a practical point of view, some other assessment of jobcharacteristics is needed. Prior to the intervention, assessment of job charac-

    teristics is needed to determine the levels of aversive job characteristics

    present in the environment, and therefore which job characteristics need to

    be altered through intervention. Then, subsequent to the intervention, assess-

    ment is needed to ensure that the intervention changed the target job charac-

    teristics (i.e. a manipulation check). Without these data, it would be

    impossible to know whether the intervention changed what it was supposed

    to and, therefore, whether correct inferences are being drawn. Therefore,even if researchers were to concentrate on interventions, they would still be

    a practical need to assess job characteristics independent of interventions.

    Second, interventions can change many job characteristics and

    personal skills. For example: the introduction of semi-autonomous work

    teams could increase support from co-workers, work autonomy and work

    variety. Further, in this example, Cotton (1993) considers training of workers

    to be an important factor in the success of semi-autonomous work teams. In

    these circumstances, it would be impossible to infer whether changes in strain

    could be attributed to changes in levels of particular job characteristics,training or some combination of job characteristics and training.

    Third, organizational changes are an obtrusive way of researching

    work stress. Without first conducting unobtrusive research in natural

    Human Relations 59(3)2 7 2

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    settings, there would be no ecologically valid and empirical basis for the

    intervention. As such, the chances of an intervention producing unintended

    and harmful consequences would be increased. This raises serious questions

    about the ethics of this approach in isolation from other research.

    Conclusions on alternative strategies: Why triangulation does

    not work 

    If all methods are flawed to some degree, then what strategies are available

    to researchers? Perhaps the most commonly prescribed strategy is that of 

    triangulation – if a job characteristic produces an association with strainacross several different measuring techniques, then it can be reliably inferred

    that there is an association between the job characteristic and strain. That

    is, because methods measure the relevant phenomena imperfectly (see, for

    example, Frese & Zapf, 1988), by using several independent methods in a

    study or research programme, the errors in measurement can be assumed to

    mitigate each other (Cook & Campbell, 1979).

    Techniques exist for triangulation of results, both within studies (multi-

    trait-multi-method matrices, latent variable modelling, e.g. Bagozzi & Yi,

    1990) and between studies (meta-analysis, e.g. Hunter & Schmidt, 1990).Triangulation of results might work only if different methods produce the

    same results. If different methods were to produce contradictory results, then

    any benefits of triangulation are lost. Further, if triangulation occurred only

    in some circumstances (only for some job characteristics, some jobs or some

    organizational settings), and not in others – pursuing a strategy of triangu-

    lation would limit severely the scope of theory and practical application of 

    work stress research.

    What is clear is that triangulation across data sources is often difficult(e.g. Sanchez et al., 1997). In a study using latent variable analysis to aggre-

    gate multiple self-reports and multiple observer ratings of job characteristics

    and strain (Semmer et al., 1996), the best fitting models indicated differences

    in how observers and incumbents rated the characteristics of focal jobs. Other

    studies have indicated that different methods of assessing job characteristics

    produce different associations with indices of strain (Morrison et al., 2003;

    Spector & Jex, 1991). In one study, self-reports of work control and human

    resource managers’ ratings of incumbent’s work control were not highly corre-

    lated (r = 0.41), yet both contributed independently to predicting subsequentindicators of coronary heart disease (Bosma et al., 1997). Even in the most

    controlled settings of a laboratory study, Jimmieson and Terry (1997) were

    unable to triangulate findings from objective manipulations of the features of 

    Daniels Rethinking job characteristics in work stress research 2 7 3

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    a simulated job task with those of perceptual measures taken during the

    course of the experiment.

    Of course, it could be argued that discrepancies within and between

    studies are due to differential predictive validity of measures of job charac-

    teristics, as well as imperfect validity of measures of strain. However, even

    where triangulation is possible, any results might be theoretically meaning-

    less. For example, triangulated evidence of an association between job

    control and strain merely tells us that there is an association – not why there

    is an association.

    Perhaps the best approach is to be clear on the kind of information

    provided by each approach to measuring job characteristics. This might help

    to achieve a better level of explanation and help to avoid any difficulties if triangulation does not occur. That is, because different methods might be

    assessing different phenomena, we need to examine more closely the

    construct validity of different methods. From above, it is clear that it is

    possible to collect information: a) on people’s perceptions of their own job

    characteristics (self-reports); b) on people’s perceptions of others’ job charac-

    teristics (other-reports); c) on collective perceptions of job characteristics

    (aggregate reports); and d) on the more institutionalized aspects of job

    characteristics (databases cross-referenced across documentary data on job

    titles, analysis of job descriptions, interventions). This might lead us tosuppose that job characteristics comprise of many different subjective and

    institutionalized facets that might be interrelated in some way.

    Differentiating facets of job characteristics

    It has been suggested that much research on job characteristics and strain

    gives the impression that people are more passive receivers of informationfrom the environment than we know is the case (Briner et al., 2004). It is the

    idea that people are active in interpreting their jobs, and consequently in

    shaping their jobs (Wrzesniewski & Dutton, 2001), which leads to consider-

    ing an aspect of job characteristics hardly mentioned in the literature – that

    is enacted job characteristics. By this, it is meant that people are likely to

    enact those job characteristics that they perceive are part of their job, should

    be part of their job or otherwise might help them achieve something at work

    (Weick, 1995). For example, a person, who believes that they have enough

    autonomy over work to reschedule some tasks, may enact this autonomy byrescheduling tasks in such a way to spend more time on aspects of work they

    enjoy and avoid undesirable features of work. A person, who believes a

    supervisor would offer sympathy, might be more likely to confide in that

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    supervisor as a source of social support. As well as enacting desirable job

    characteristics – people can also enact undesirable job characteristics. For

    example, associations between achievement-oriented pressured type A

    personality and workload (Spector & O’Connell, 1994) could be explained

    by type As taking on more workload to achieve ambitious career goals and

    status symbols.

    The job incumbent is not the only person capable of enacting job

    characteristics. Given their power over others (Braverman, 1974), it is possible

    that managers enact the job characteristics that they believe are characteristics

    of a given person’s job (for example, by asking subordinates to perform

    certain tasks, achieve certain objectives, prescribing ways in which tasks are

    to be performed or providing levels of resources that constrain how sub-ordinates can meet work objectives). Professional and organizational norms

    are also likely to reflect on how colleagues and subordinates enact the working

    environment, in such a way as to encourage or proscribe the enactment of 

    certain job characteristics (Scott, 1995). Of course, managers, colleagues and

    subordinates can enact positive job characteristics (such as support, allowing

    autonomy, participation) or they can enact negative job characteristics (such

    as creating a greater workload, role conflict).

    It is possible, then, to differentiate between enacted job characteristics

    – what actually happens – and perceived job characteristics (self-perceptions,other perceptions). To some degree, enacted job characteristics are a product

    of one or more persons’ perceptions of what a job entails. However, earlier

    I referred to institutionalized elements of job characteristics. These are

    embedded in the contractual elements of job descriptions, technology,

    organizational structures and the networks of social relationships embedded

    in job design, organizational structures and reporting relationships. These

    elements could serve to limit what is possible for various people to enact

    within a particular job (for example, we might expect: professional workersto report greater autonomy than non-professional workers; assembly line

    work to limit job autonomy, skill use and variety; workers in matrix organiz-

    ations to experience greater role ambiguity and conflict). Since these institu-

    tionalized elements serve to proscribe limits – they are referred to as latent

    job characteristics.

    On the basis of this discussion, it is possible, then, to define three

    different facets of job characteristics as follows:

    • Latent job characteristics2 are those aspects of job characteristicsembedded in organizational and technical processes. They are inde-

    pendent of activity or perception, but remain dormant unless there is

    an incumbent doing a job.

    Daniels Rethinking job characteristics in work stress research 2 7 5

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    • Perceived job characteristics are someone’s generalized perceptions of 

    job characteristics.

    • Enacted job characteristics3 are the events that job incumbents, and

    those that come into contact with the incumbent, enact. They comprise

    the emergent and dynamic characteristics of the job.

    Latent job characteristics

    Latent job characteristics comprise the institutional and technological pres-

    sures that influence work, and are reflected in techniques usually considered

    to be furthest from the perceptions and actions of individuals in work – and

    therefore are often considered to be the most ‘objective’ indicators of jobcharacteristics (Spector & Jex, 1991). They might include details of contract

    lengths or notice periods as indicators of job security, contractual hours –

    rather than actual hours worked – as an indicator of work demands or

    machine-paced work as an indicator of lower job autonomy. Suitable

    methods to assess latent job characteristics might be analysis of large data-

    bases such as the O*NET, or analysis of documents such as job descrip-

    tions, employment contracts, operating manuals and organizational charts.

    Latent job characteristics might also be inferred, at least partially, from

    interventions that change job descriptions, employment contracts, operat-ing manuals, organizational structures, work processes or technology.

    However, latent job characteristics, in themselves, are unlikely to provide

    the basis of explaining links between work and strain. Evidence indicates it

    is factors much closer to individuals that have the closest links to strain

    (Lazarus, 1999; Suh et al., 1996).

    Perceived job characteristics

    Several kinds of observers can form judgements and make reports about the

    characteristics they usually associate with a job. Therefore, many current

    measures of job characteristics used in survey research reflect the generalized

    perceptions of incumbents, line managers, co-workers, some aggregate

    thereof or researchers – depending on who is doing the rating. With the

    exception of researchers’ perceptions, links might be expected between latent

    job characteristics and perceived job characteristics.

    The first way in which latent job characteristics could influence

    perceived job characteristics might be through direct judgement. Here, indi-viduals make inferences concerning how the nature of work is dictated by

    factors such as technology, organizational processes and employment

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    contracts. That is, factors that might serve to influence incumbents’ and

    others’ perceptions of work characteristics include production or service

    delivery technology, extent of teamworking, information systems, perform-

    ance management practices, reward structures and job descriptions (see, for

    example, Parker et al., 2001). Indeed, changes in factors indicative of latent

    job characteristics have been found to be associated with subsequent changes

    in self-reports of job characteristics (Parker, 2003; Parker et al., 2002).

    Clearly, shared experience could lead to commonality in perceptions of job

    characteristics amongst a group.

    However, there are other indirect routes by which latent job charac-

    teristics might influence perceived job characteristics and promote conver-

    gence of perceptions. These concern observation and discussion with others.For example, during socialization into a new job, incumbents may come to

    judge levels of job characteristics by discussion with line managers (Ostroff 

    & Kozlowski, 1992). Further, shared stories and discourses about work that

    reinforce a shared perception of that job may be passed around incumbents

    with the same job title, their line managers and others with whom they come

    into contact (Feldman & Rafaeli, 2002). In this way, others’ perceptions may

    come to influence an incumbent’s perception of his or her job.

    Others’ perceptions may come to converge with incumbents’ percep-

    tions in a manner more or less independent of latent job characteristics too.This might occur through socialization practices that reflect shared training,

    especially where early training is carried out in organizations, such as

    universities, largely independent of the eventual working environment

    (DiMaggio & Powell, 1983). It might also occur where powerful groups of 

    workers with common interests are able to claim the right to certain job

    characteristics, such as skill use, regardless of job descriptions, technology

    and other factors related to latent job characteristics (Noon & Blyton, 1997).

    These groups may then be able to protect that claim and influence percep-tions through regulations that place restrictions on who is allowed to do a

    job, as has been the case for some trades unions and professional institutions

    (Noon & Blyton, 1997).

    The perceptions of researchers are unlikely to be influenced directly by

    others’ perceptions. Usually, researchers’ ratings are based on what

    researchers can observe. Thus reflecting, partially at least, job characteristics

    as they are enacted. We might expect some degree of overlap between

    researchers’ ratings of job characteristics and those of incumbents, co-

    workers and managers. This is because job characteristics as they are enactedare driven by the perceptions of those with direct influence on a particular

    job: incumbents, co-workers and line managers (Weick, 1995). That is,

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    incumbents, co-workers and managers enact those job characteristics that

    they attribute to the incumbent’s job.

    Enacted job characteristics

    These are events that reflect jobs as they happen. It is these events that are

    proximal to the individual’s experience of strain (Weiss & Cropanzano,

    1996). For example, Suh et al. (1996) found that more recent events have a

    stronger effect on strain than more distant events. Pillow et al. (1996) found

    that the impact of major life events on strain was mediated by daily stress-

    ful events caused by the disruption of the life events. Further, work events

    are considered the basis upon which several cognitive processes come toinfluence affective experience at work (Daniels et al., 2004). Hence, I

    consider enacted job characteristics to be the locus of appraisals and coping

    that influence strain, not enduring perceptions of work or structural, techno-

    logical or contractual features of work. That is, I consider that the intra-

    individual processes that produce strain within people do so because those

    processes are influenced by enacted job characteristics.

    Enacted job characteristics can take several forms. They can be poten-

    tially observable – comprising behaviours or discourse. A behavioural

    example might be using several tools to complete a task as enacted skill use.For discourse, an example might be voicing an objection to others’ plans, as

    an example of participation in decision-making. Note, even clandestine activi-

    ties that are behavioural or discursive are potentially observable by someone

    other than the incumbent. Enacted job characteristics might also be cognitive,

    and therefore not amenable to direct external observation, whatever the

    circumstances. An example of cognitive enactment might be complex

    problem-solving, as an example of demands. Enacted job characteristics can

    be enacted by the incumbent, or by the actions of others. For instance, roleambiguity can be enacted by managers setting tasks with no clear objectives.

    It might be supposed that latent job characteristics in seemingly

    restricted environments, such as machine-paced manufacturing, have

    stronger relations to other facets of job characteristics than in less restricted

    environments, such as managerial work. However, Briner et al. (2004) argue

    that even in restricted environments, people still enact the environment and

    have some influence over the characteristics of their work (Wrzesniewski &

    Dutton, 2001).

    The idea of enacted job characteristics echoes episodic eventsapproaches to work and affect (Weiss & Cropanzano, 1996), where the

    interpretations of specific events as they happen cause changes in affect, and

    changes in affect subsequently influence attitudes such as job satisfaction.

    More widely, concentrating on job characteristics as enacted events allows

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    us to study the processes by which organizational life influences individuals

    and how individuals act within organizational contexts (Peterson, 1998).

    This is not to say that generalized perceptions or structural, technological or

    contractual features of work are not without influence on strain. Rather,

    because enacted job characteristics are the locus of intra-individual processes

    that produce strain, enacted job characteristics may mediate the relationships

    between perceived job characteristics, latent job characteristics and strain –

    hence perhaps offering an explanation for associations between indicators of 

    perceived or latent job characteristics and strain.

    As an example of the inter-relationships between latent, perceived and

    enacted job characteristics, consider a matrix organization consisting of over-

    lapping project teams. Here there is great potential for role conflict where anindividual belongs to more than one project team (latent job characteristic).

    Incumbents’ previous experience of working in such structures plus

    discussion between them and their managers might lead to the perception of 

    role conflict within the job (perceived job characteristic). Because managers

    may then consider role conflict as an inevitable consequence of working in

    such organizational structures, managers may then ask workers to complete

    tasks to deadlines without checking on the progress of other tasks against

    other deadlines, producing role conflict (enacted job characteristic) which is

    subsequently appraised as stressful.Some mutual influence between perceived and enacted job character-

    istics might be expected. Mere enactment of a job characteristic might alter

    a person’s view of his/her work (Weick, 1995). Extrapolating from the role

    conflict example just given – repeated exposure to conflicting priorities given

    by managers may create heightened perceptions of role conflict. However,

    where there is opportunity to observe or discuss work with others, then

    others’ perceptions of the focal person’s job might change too. This is

    perhaps likely to be strongest where enactment of job characteristics isroutinized, so that there is more opportunity for shared understandings to

    emerge (Feldman & Rafaeli, 2002). For example, the routinized timetables

    and breaks in schools provide the perceptual impetus for discussing the

    demands imposed by school timetables, and visiting the staff room at break-

    times provides a routinized forum for discussing these issues. Perhaps too,

    where there is mutual dependence between workers to perform tasks, then

    perceptions of others’ job characteristics might develop that allow indi-

    viduals to enact job characteristics in a manner that is heedful of others’ work

    (Weick & Roberts, 1993). For instance, in self-regulating work teams, clearlyspecifying one’s own tasks and estimated time of completion of those tasks

    might enact role clarity for colleagues.

    Supposing interdependence of enacted job characteristics and various

    actors’ perceived job characteristics allows less restrictive assumptions about

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    relations between the work environment and measurements than has largely

    been the case hitherto. As noted earlier, using perceptual measures has often

    entailed assuming/presuming the work environment causes perceptions.

    Positing the existence of enacted job characteristics means perceptions might

    cause events in the work environment, and events in the work environment

    might cause perceptions.

    Table 1 summarizes the features of latent, perceived and enacted job

    characteristics. Figure 1 is a representation the relationships between

    enacted, perceived and latent job characteristics that have been illustrated in

    the preceding paragraphs. Strain is included in the model as a consequence

    of the relationships between these different facets of job characteristics, with

    enacted job characteristics as the most proximal cause of strain. However,this relationship is shown as conditional, because the processes linking

    specific forms of strain to job characteristics are complex (e.g. Daniels et al.,

    2004). Therefore the detail of these relationships is beyond the scope of the

    current model.

    Figure 1 is an illustration of the potential gain in theoretical richness

    by expanding the conception of job characteristics to differentiate enacted,

    Human Relations 59(3)2 8 0

    Table 1 Summary of facets of job characteristics

    Facet Key features Sub-classes Example methods

    Latent job Institutional, social and National job databases

    characteristics technological pressures Analysis of job

    that influence work descriptions,

    employment contracts,

    operating manuals and

    organizational charts

    InterventionsPerceived job Generalized Perceptions of own Survey methods that

    characteristics perceptions of how a job rely on individuals

     job usually is Line managers’ rating the extent to

    perceptions which they agree a

    Co-workers’ statement describes a

    perceptions target job

    Researchers’

    perceptions

    Enacted job Events and activities Behavioural Self-reports of events

    characteristics in the job as they Discursive or activities withinhappen Cognitive specific time frames,

    using, for example, daily

    diary methods

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    perceived and latent facets of job characteristics. The strength of relations

    suggested in Figure 1 might vary in strength according to the nature of thejob characteristic under investigation (e.g. are the relations shown in Figure 1

    stronger for skill use and autonomy, than for work demands?). The differ-

    entiation of facets of job characteristics, and the mapping of possible

    relations among them, raises implications for both methods and the kinds of 

    research questions researchers might choose to investigate. We turn to these

    implications next.

    Implications for methods

    How then should enacted, perceived and latent job characteristics be

    measured? Self-reports are obviously necessary to determine perceived job

    Daniels Rethinking job characteristics in work stress research 2 8 1

    Latent job

    characteristic

    Managers a nd

    colleagues’

    perceptions of 

     job

    Enacted job

    characteristic

    Researchers’

    perception of  job

    Strain

    Incumbent’s

    perceptions of 

     job

    Indicates a potentially weaker or conditional relationship

    Figure 1 Possible relationships between facets of job characteristics

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    characteristics. Suitable measures might include many of the popular

    measures for assessing job characteristics, with Likert-type scaled responses

    for assessing generalized levels of agreement with statements describing job

    characteristics over an unspecified time span. Aggregated measures of this

    kind may serve to identify coherent collective perceptions, should researchers

    be interested in the influence of a social group as a whole on individuals’

    perceived and enacted job characteristics. Researchers might assess latent job

    characteristics by examining various forms of organizational documents and

    processes, for example: job descriptions and contractual arrangements; struc-

    tural network relationships with co-workers, subordinates and supervisors;

    examination of the job’s place in the organizational structure; and how tech-

    nology is used in the job. Researchers might then assess each source of datafor the extent to which it provides evidence of the presence or absence of 

    pre-defined job features. For example, the latent job characteristics for ‘role

    conflict’ might be assessed by looking at the number of reporting relation-

    ships for an individual (from the job description), the number of project

    teams or committees that individual belongs to (from the organizational

    chart), the number of processes that individual is responsible for (from exam-

    ining production or service delivery manuals).

    To measure enacted job characteristics, self-reports may also be the

    best strategy. However, the kind of self-reports used would be different fromthose used to assess perceived job characteristics. There are a number of 

    arguments for this point of view. These can be divided into three main areas:

    a) other methods are unsuitable; b) self-reports are commonly used in coping

    research; c) in the right circumstances, self-reports can minimize bias.

    The argument that other methods are unsuitable is essentially a prac-

    tical argument. Enacted job characteristics are dynamic and activity-oriented

    – so measures should tap these features. Clearly, documentary and techno-

    structural assessments are unable to achieve this. As mentioned earlier,ratings by external observers are subject to framing biases and cannot assess

    hidden or cognitive activity well. Moreover, as jobs become more knowledge

    intensive, the potential to use external observers is reduced.

    The argument that self-reports are used in coping research is essentially

    an argument of precedent. At least since the development of the Ways of 

    Coping Checklist (Lazarus & Folkman, 1984), self-report methods have been

    the standard way of assessing coping. This is because coping includes cogni-

    tive and hidden activity, as well as overt behaviour and discourse – features

    shared with enacted job characteristics. It may be reasonable, then, to expectthat people can provide accurate assessments of the work events they

    encounter. However, self-reports can be inaccurate and researchers need to

    pay close attention to the nature of self-report methodologies and the psycho-

    metric properties of instruments.

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    Therefore, the strongest argument for self-reports of enacted job charac-

    teristics is that self-reports can provide accurate assessments of enacted job

    characteristics, if designed properly and used in the right circumstances. To

    minimize bias, self-reports used to assess enacted job characteristics should

    concentrate on specific events, be clearly worded and require recall only over

    a short, recent and specified time frame (Frese & Zapf, 1988).

    The best period may be to report on current activity or within the past

    few hours. Evidence indicates people may exaggerate how proactive they are

    if the time frame becomes too great (Stone et al., 1998). Because of their

    ability to capture processes close to when they happen (Bolger et al., 2003),

    the best methods to develop and test theory around enacted job character-

    istics might be event sampling methods – such as computerized momentaryassessments or daily diary studies. This means that self-report measures of 

    enacted job characteristics are best employed in short-term studies – and

    therefore in research on rapidly changing aspects of strain – such as affect

    (Weiss et al., 1999). However, event sampling methods are not straight-

    forward, and researchers need to take steps to eliminate potential biases that

    can affect event sampling studies if short-term assessments of enacted job

    characteristics are to be accurate (see, for example, Bolger et al., 2003).

    Further steps need to be taken to ensure designs can rule out alternative

    explanations for findings.For some health outcomes (such as clinical levels of depression), short-

    term assessments of enacted job characteristics may not be suitable, as the

    causal process is too extended. Instead, more traditional measures of job

    characteristics may need to be used. Whilst such studies may not be able to

    offer unambiguous theoretical statements of specific causal processes, if 

    supplemented with short-term studies of the processes involved in the sub-

    clinical stages of long-term health outcomes, then more precise theoretical

    statements might be possible. For example, affective reactions to work,which are highly dynamic (Parkinson et al., 1995), might mediate the link

    between work characteristics and longer-term indicators of strain (Robinson,

    2000; Spector & Goh, 2001). In these circumstances, event sampling studies

    can be used to examine the affective reactions to work presumed to mediate

    between job characteristics and more slowly changing forms of strain. Simi-

    larly, short-term and dynamic physiological reactions, such as heart rate, can

    be monitored by portable devices, and so can be assessed in studies looking

    at job characteristics and physical strain.

    Notwithstanding all these considerations, examining a complete set of relationships between the latent, perceived and enacted aspects of just one

    job characteristic, plus assessing relationships with strain, might seem very

    labour intensive, since data need to be collected from several sources and the

    validity and reliability of three sets of measures for each job characteristic

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    need to be established. Moreover, if quantitative methods are to be used in

    event sampling studies, statistical methods are needed that can cope with

    complex multi-level data with a time series element. Multi-level regression

    and multi-level structural equations modelling methods would seem appro-

    priate (e.g. Bentler, 2003; Muthén & Muthén, 1998).

    Implications for research questions

    The differentiation of latent, perceived and enacted job characteristics does

    not just have implications for supplementing more traditional approaches to

    assessing job characteristics with event-based measures. This differentiationshifts the level of explanation from one concerned with explaining variance

    in concurrent levels of strain or subsequent changes in strain, to a much

    richer, dynamic and multi-level view of job characteristics. In this dynamic

    view, enacted job characteristics are at the juncture between the cognitive

    interpretation and coping processes that influence strain and the social and

    organizational processes from which enacted job characteristics emerge. Put

    another way, identifying enacted job characteristics neither privilege work

    and organizational approaches nor cognitive and perceptual approaches to

    understanding strain. Rather, the differentiation provides one way of thinking about how the two approaches might be reconciled. There are novel

    research questions that arise too.

    The first pertains to the empirical status of the different facets of job

    characteristics – if latent, perceived and enacted job characteristics represent

    different phenomena, then evidence of their differentiation should be

    produced. One way of doing this might be through factor analysis. For

    example, multiple indicators of latent job autonomy should correlate more

    closely with each other than multiple indicators of perceived and enactedautonomy. In turn, multiple indicators of perceived autonomy should corre-

    late most closely with each other and indicators of enacted autonomy corre-

    late most closely with other indicators of enacted autonomy. In this case,

    multiple indicators of latent job autonomy, multiple indicators of perceived

    job autonomy and multiple indicators of enacted job autonomy should

    produce three distinct factors if subjected to factor analysis. On top of this

    requirement, if event sampling studies are to be used to assess enacted job

    characteristics, then variation in levels of enacted job characteristics should

    be evident across short time intervals. However, recent evidence does suggestmeaningful daily variability in job characteristics such as demands, skill use,

    control and support (Butler et al., 2005; Daniels & Harris, 2005).

    If the different facets of job characteristics are empirically distinct, then

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    hand, linking job characteristics to embedded organizational processes and

    perceptions provides a theoretical footing for understanding the links

    between the institutional and economic factors, at the levels of nation-state,

    industry and organization, that influence job design and the perception of 

    work (Hall & Soskice, 2001; Scott, 1995). Further, by differentiating

    amongst different aspects of job characteristics, there is a firmer and more

    fertile theoretical grounding for the assessment of job characteristics and

    explaining how different facets of job characteristics contribute directly and

    indirectly to strain.

    One contribution of this article, then, is to illustrate how careful

    consideration of methods can provide a better basis for interpreting results

    produced by different methods and, hence, help explain why triangulationdoes not occur. Another contribution is that, at least in the area of work

    stress research, such a careful consideration of methods can enhance theor-

    etical richness and suggest new avenues for research. This theoretical richness

    comes from considering job characteristics, not as separate from or as

    distinct influences on work events, but as phenomena that comprise inter-

    related institutional, technological and perceptual facets together with events

    that are the product of actors’ agency. This approach favours the use of 

    dynamic methods capable of capturing processes instead of or as well as

    variance, and suggests new ways of interpreting the findings of variance-oriented research designs. The article’s contribution may extend beyond the

    application of new ways of conceptualizing job characteristics to interpret-

    ing research findings. As noted above, considering different facets of job

    characteristics and how they interrelate enables us to consider how enacted

    job characteristics may be changed or impeded by organizational factors and

    shared and individual perceptions. Arguably, this might lead to more sophis-

    ticated approaches to intervention that consider simultaneously both the

    perceptual and organizational levers and barriers to changing the experienceof job characteristics.

    Notes

    1 In much work stress research, self-report methods require participants to rate the

    characteristics of their work. It is these ratings we concentrate on here. This articledoes not concern itself with methods to assess the interpretative processes by which

    a person appraises a job characteristic to be more or less unpleasant or stressful.

    Rather, in this article, I concentrate on methods that seek to assess the reality of jobcharacteristics without further interpretation of their desirability.

    2 The term should not be confused with ‘latent variables’, familiar from structuralequations modelling, that are unobservable variables indexed by a set of observable

    variables.

    Human Relations 59(3)2 8 6

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    3 Enacted job characteristics are events as they happen, rather than the appraisal of 

    those events. It is possible for people to enact job characteristics to fulfil somepurpose. For example, job autonomy or social support can be enacted to help cope

    with other aversive enacted job characteristics, by facilitating problem-focusedcoping, avoidance or emotion-focused coping (Daniels & Harris, 2005). In this

    sense, enacted job characteristics can be a coping behaviour, used to fulfil some

    coping function (Lazarus, 1999). However, enacted job characteristics are a muchwider concept, encompassing events enacted for whatever purpose by job incum-

    bents and others that come into contact with the incumbent.

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    Human Relations 59(3)2 9 0

    Kevin Daniels is Professor of Organizational Psychology, Loughborough

    University. He has a PhD in Applied Psychology. He is currently an

    Associate Editor of the  Journal of Occupational and Organizational 

    Psychology , and is on the editorial board of the British Journal of Manage-

    ment. His research interests concern the relationships between emotion,

    cognition and organizational processes.

    [E-mail: [email protected]]