<prompt> Translate the following text to SwahiliThis is in considerable contrast to other evaluation methods, where control and comparison groups are used subtractively to rule out other reasons for a finding and establish firm attribution.  <response>: Hii ni tofauti kubwa na mbinu nyingine za tathmini, ambapo vikundi vya kudhibiti na kulinganisha hutumiwa kwa kuondoa sababu nyingine za ugunduzi na kuanzisha sifa ya uhakika. 