<prompt> Translate the following text to Swahiliprovides information about the experience of the investigators with case study methods and what they have written previously about the questions that were answered.  <response>: Utafiti wa utafiti wa kesi unaonyesha uzoefu wa watafiti na mbinu za utafiti wa kesi na kile walichoandika hapo awali juu ya maswali yaliyojibiwa. 