Text: 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.
Entailment: Finding out what was stressful to the women was important to the study.
Contradiction: Finding out what was calming to the women was important to the study.