<prompt> Translate the following text to EnglishKwa sababu ya lengo la utafiti - kugundua nini kilikuwa na mkazo kwa wanawake na kwa nini matukio ya matatizo ya afya ya akili miongoni mwao yalikuwa ya juu sana - mbinu ya utafiti wa kesi ilifunua umuhimu wa mabadiliko yoyote katika hali ya maisha kama chanzo cha mkazo badala ya tu kuthibitisha mabadiliko ambayo watazamaji wangeweza kuwa na mawazo ya mkazo a priori.  <response>: In terms of the purposes of the study-finding out what was stressful to the women and why the incidence of mental health problems among them was so high-the case study method disclosed the importance of any change in life circumstances as a source of stress rather than merely confirming change that the observers might have thought stressful a priori. 