<prompt> Translate the following text to EnglishWatafiti wengi ambao kuandika masomo ya kesi kutumia data ya ubora kwa sababu wanaamini wao kuwa tajiri zaidi, zaidi ya ufahamu, na rahisi zaidi kuliko data ya kiasi.  <response>: Many researchers who write case studies use qualitative data because they believe them to be richer, more insightful, and more flexible than quantitative data. 