<prompt> Translate the following text to EnglishHata hivyo, tunahitaji kuwa na uhakika kwamba masomo ya kesi ambayo matokeo yetu tutatumia yamepitisha taratibu sawa za kuhakikisha kutokuwa na upendeleo.  <response>: We would need to assure ourselves, however, that case studies whose results we are going to use have adopted the same procedures for ensuring impartiality. 