<prompt> Translate the following text to SwahiliUsing 4, 10, or 15 sites as case studies might be feasible, but we would still need to be concerned about the risks in generalizability.  <response>: Kwa hivyo, ikiwa tunafanya utafiti wa kesi za 4, 10, au 15 kwa njia ya utafiti wa kesi, tunaweza kuwa na wasiwasi juu ya hatari za kuelezea kwa ujumla. 