<prompt> Translate the following text to EnglishWataalamu wa mbinu ambao hukazia masomo ya kesi huelezea vigezo vya utafiti mzuri katika lugha tofauti, ingawa wanaweza kushughulikia wasiwasi wa msingi  <response>: Methodologists who focus on case studies express their criteria of good research in different language, although they may deal with underlying concerns 