<prompt> Translate the following text to EnglishHapa, kwa kudhani tunataka kujaribu mbinu ya uingiliaji, ni vigumu kuona jinsi nadharia moja-ukubwa inaweza uwezekano kufaa kesi zote.  <response>: Here, assuming we want to try the interventionist approach, it is hard to see how a one-size theory can possibly fit all cases. 