In #QualitativeDataAnalysis (#QDA), NVivo is the leading (proprietary) tool. Open Source alternatives are far behind in features, and I feel it is one category of #research tools that is really lacking in the #OpenScience toolbox.
Currently, I would highlight four tools:
(Well, "leading" as in it's the one I've seen used at unis most. But looks like MAXQDA and ATLAS.ti are up there too, I've just never had the opportunity to try them out.)
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