<prompt> Translate the following text to SwahiliIn fact, a case study where the only people interviewed were senior officials would be seen as a not-good case study, in contrast to one where the views of individuals at all levels affected was obtained.  <response>: Kwa kweli, utafiti wa kesi ambapo watu pekee walihojiwa walikuwa maafisa wa juu wangeonekana kama utafiti wa kesi mbaya, kinyume na moja ambapo maoni ya watu binafsi katika ngazi zote zilizoathiriwa yalipatikana. 