Aquad

Aquad is open source computer-assisted qualitative [data analysis software]. It supports analysis of text, audio, video, and graphical data.

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Features

Aquad provides functions for content analysis, including:

Text search: looking for segments in texts
Classifying: labeling text, audio, image, and videosdata
Writing memos : inserting annotations linked to parts or whole texts, audios, photos, or videos
Word analysis: counting words according to criteria
Retrieval by file name, code, keyword, or content: Retrieval of segments according to criteria
Tabular analysis: constructing tables combining criteria and arranging data in rows and columns
Construction of linkage hypotheses: looking for relationships across data
Comparison of cases/files: contrasting coding across files
Sequential analysis: objective hermeneutics
Comparison of cases by Boolean analysis: critical features and identification of "types" as introduced by Charles Ragin.
Export data: quantitative software as R, SPSS, and PSPP for statistical analysis.

Data context

Data can be directly analyzed on the screen or outside. One-step allows on-screen coding with digitized data. Two-steps allows the user to enter codes on the screen, keeping the documents on the desk or in other means such as cameras, TVs, etc. For instance, two-steps allows the analysis of recordings, diaries, incunabula, or objects without transcribing, taking photos, or scanning them.

Comparison of cases/files by Boolean analysis

Aquad allows comparison of cases/files by "logical minimization", by using its own algorithm and the R package qualitative comparative analysis to determine implicants.

Versions

The latest available version is Aquad 8, which is available in German, English, and Spanish. Version 7 is also available for download.