AAN N IINTRODUCTION TO NTRODUCTION TO QDA MQDA MINER:INER:oror

IS QDA MINER REALLY A BETTER SOLUTION IS QDA MINER REALLY A BETTER SOLUTION

FOR MIXED METHODS RESEARCH?FOR MIXED METHODS RESEARCH?

ByBy

Normand PéladeauNormand PéladeauPresidentPresident

Provalis Research Corp.Provalis Research Corp.

Integration of numerical dataIntegration of numerical data

• Inclusion of socio-demographic data, responses to Inclusion of socio-demographic data, responses to closed-ended questions, etc. closed-ended questions, etc.

• Limited ability to perform comparisons & no statisticsLimited ability to perform comparisons & no statistics

Performing statistics on/with qualitative data Performing statistics on/with qualitative data

1)1) Export code frequency matrix to fileExport code frequency matrix to file

2)2) Open statistical softwareOpen statistical software

3)3) Import saved matrixImport saved matrix

4)4) Run statistical analysisRun statistical analysis

MIXED METHODS INMIXED METHODS INTRADITIONNAL CAQDAS TRADITIONNAL CAQDAS

1)1) Same file format as SimStat (a stat software) Same file format as SimStat (a stat software) and full interoperability between the two.and full interoperability between the two.Ability to keep numerical, categorical data, dates and text data in a single data fileAbility to keep numerical, categorical data, dates and text data in a single data file

HOW DOES QDA MINER DIFFERS?HOW DOES QDA MINER DIFFERS?

1)1) Same file format as SimStat (a stat software) Same file format as SimStat (a stat software) and full interoperability between the two.and full interoperability between the two.Ability to keep numerical, categorical data, dates and text data in a single data fileAbility to keep numerical, categorical data, dates and text data in a single data file

HOW DOES QDA MINER DIFFERS?HOW DOES QDA MINER DIFFERS?

1)1) Same file format as SimStat (a stat software) Same file format as SimStat (a stat software) and full interoperability between the two.and full interoperability between the two.Ability to keep numerical, categorical data, dates and text data in a single data fileAbility to keep numerical, categorical data, dates and text data in a single data file

2)2) Integration of statistical toolsIntegration of statistical tools

Frequencies and percentages, F-test, chi-square, correlation, Frequencies and percentages, F-test, chi-square, correlation, clustering, multidimensional scaling, correspondence analysis.clustering, multidimensional scaling, correspondence analysis.

HOW DOES QDA MINER DIFFERS?HOW DOES QDA MINER DIFFERS?

STATISTICS ON QUALITATIVE DATASTATISTICS ON QUALITATIVE DATA

STATISTICS ON QUALITATIVE DATASTATISTICS ON QUALITATIVE DATA

1)1) Same file format as SimStat (a stat software) Same file format as SimStat (a stat software) and full interoperability between the two.and full interoperability between the two.Ability to keep numerical, categorical data, dates and text data in a single data fileAbility to keep numerical, categorical data, dates and text data in a single data file

2)2) Integration of statistical toolsIntegration of statistical tools

Frequencies and percentages, F-test, chi-square, correlation, Frequencies and percentages, F-test, chi-square, correlation, clustering, multidimensional scaling, correspondence analysis.clustering, multidimensional scaling, correspondence analysis.

HOW DOES QDA MINER DIFFERS?HOW DOES QDA MINER DIFFERS?

1)1) Same file format as SimStat (a stat software) Same file format as SimStat (a stat software) and full interoperability between the two.and full interoperability between the two.Ability to keep numerical, categorical data, dates and text data in a single data fileAbility to keep numerical, categorical data, dates and text data in a single data file

2)2) Integration of statistical toolsIntegration of statistical tools

Frequencies and percentages, F-test, chi-square, correlation, Frequencies and percentages, F-test, chi-square, correlation, clustering, multidimensional scaling, correspondence analysis.clustering, multidimensional scaling, correspondence analysis.

3)3) Integration of other text analysis techniquesIntegration of other text analysis techniques

• Within QDA Miner itselfWithin QDA Miner itself

• With WordStat (a content analysis add-on)With WordStat (a content analysis add-on)

HOW DOES QDA MINER DIFFERS?HOW DOES QDA MINER DIFFERS?

ANALYSIS OFTEXTUAL DATA

Text Mining

Content Analysis

Information Retrieval

ANALYSIS OFNUMERICAL DATA Statistical Analysis

Qualitative Analysis

Computational Linguistic

Mixed Methods

INTEGRATING TEXT ANALYSIS INTEGRATING TEXT ANALYSIS TECHNIQUESTECHNIQUES

QUALITATIVE QUALITATIVE CONTENT CONTENT ANALYSISANALYSISOne can use codings in QDA Miner to control what will be analyzed by WordStat

QUALITATIVE QUALITATIVE CONTENT CONTENT ANALYSISANALYSIS

One can use WordStat text-mining features or dictionaries to search and code segments in QDA Miner

CONTENT ANALYSIS CONTENT ANALYSIS QUALITATIVEQUALITATIVE

• Boolean search ( Boolean search ( AND, OR, NOTAND, OR, NOT ) )

Information Retrieval ModelsInformation Retrieval Models

• Similarity searchSimilarity search

QUALITATIVE + INFORMATION QUALITATIVE + INFORMATION RETRIEVALRETRIEVAL

QUERY BY EXAMPLESQUERY BY EXAMPLES

QUERY BY EXAMPLESQUERY BY EXAMPLES

QUERY BY EXAMPLESQUERY BY EXAMPLES

• Relevance feedback mechanismRelevance feedback mechanism

• Fuzzy string matchingFuzzy string matchingResistant to misspellingResistant to misspelling

Matches related wordsMatches related words

Ex.: “resistant to misspelling”Ex.: “resistant to misspelling” “ “resistent to mispeling”resistent to mispeling”

“ “resist to misspelled words”resist to misspelled words”

“ “resist to words not correctly spelled”resist to words not correctly spelled”

QUERY BY EXAMPLESQUERY BY EXAMPLES

General IntroductionGeneral Introduction 10 minutes tour of QDA Miner 3.2

10 minutes tour of WordStat 5.0

Specific Features of QDA MinerSpecific Features of QDA Miner Importing NVivo projects The Bubble Chart feature

The Coding of Graphics The Query by Example

The Report Manager Keyword Retrieval features

The Command Log Automatic Document Classification

The Code Sequences Feature Coded text highlighting

Segment Retrieval Techniques

ADDITIONAL LEARNING RESOURCESADDITIONAL LEARNING RESOURCES

Click on any of the above links for self-running demos