Do the methods of agreement and difference show that factors are necessary or sufficient conditions?

Question

Quizplus · Accepted Answer

The method of agreement shows that a factor is sufficient by looking for instances where the effect always occurs in the presence of the factor. The method of difference shows that a factor is necessary by comparing instances where the effect occurs and instances where it does not, with the only difference being the presence or absence of the factor. Therefore, agreement shows sufficiency, and difference shows necessity. Hence, option D is correct as the agreement shows sufficiency, and difference shows necessity.

Do the Methods of Agreement and Difference Show That Factors