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  2. Thematic analysis - Wikipedia

    en.wikipedia.org/wiki/Thematic_analysis

    Thematic analysis goes beyond simply counting phrases or words in a text (as in content analysis) and explores explicit and implicit meanings within the data. [2] Coding is the primary process for developing themes by identifying items of analytic interest in the data and tagging these with a coding label. [ 4 ]

  3. Content analysis - Wikipedia

    en.wikipedia.org/wiki/Content_analysis

    Content analysis is the study of documents and communication artifacts, which might be texts of various formats, pictures, audio or video. Social scientists use content analysis to examine patterns in communication in a replicable and systematic manner. [1]

  4. Open coding - Wikipedia

    en.wikipedia.org/wiki/Open_coding

    Based in grounded theory, open coding is the analytic process through which concepts (codes) are attached to observed data and phenomena during qualitative data analysis.It is one of the techniques described by Strauss (1987) and Strauss and Corbin (1990) for working with text.

  5. Latent Dirichlet allocation - Wikipedia

    en.wikipedia.org/wiki/Latent_Dirichlet_allocation

    One difference is that pLSA uses a variable to represent a document in the training set. So in pLSA, when presented with a document the model has not seen before, we fix Pr ( w ∣ z ) {\displaystyle \Pr(w\mid z)} —the probability of words under topics—to be that learned from the training set and use the same EM algorithm to infer Pr ( z ...

  6. MaxDiff - Wikipedia

    en.wikipedia.org/wiki/MaxDiff

    In 1938 Richardson [2] introduced a choice method in which subjects reported the most alike pair of a triad and the most different pair. The component of this method involving the most different pair may be properly called "MaxDiff" in contrast to a "most-least" or "best-worst" method where both the most different pair and the direction of difference are obtained.

  7. Difference in differences - Wikipedia

    en.wikipedia.org/wiki/Difference_in_differences

    Difference in differences (DID [1] or DD [2]) is a statistical technique used in econometrics and quantitative research in the social sciences that attempts to mimic an experimental research design using observational study data, by studying the differential effect of a treatment on a 'treatment group' versus a 'control group' in a natural experiment. [3]

  8. Paired difference test - Wikipedia

    en.wikipedia.org/wiki/Paired_difference_test

    A paired difference test is designed for situations where there is dependence between pairs of measurements (in which case a test designed for comparing two independent samples would not be appropriate). That applies in a within-subjects study design, i.e., in a study where the same set of subjects undergo both of the conditions being compared.

  9. Video Data Analysis - Wikipedia

    en.wikipedia.org/wiki/Video_Data_Analysis

    Video Data Analysis (VDA) is a curated multi-disciplinary collection of tools, techniques, and quality criteria intended for analyzing the content of visuals to study driving dynamics of social behavior and events in real-life settings. It often uses visual data in combination with other data types.