Abstract
Edwards (1959) has presented a table of intercorrelations to substantiate his claim that the variables measured by his Personal Preference Schedule (EPPS) are relatively independent. I t then seems appropriate to factor analyze this matrix of correlations in order to determine the extent of independence. However, as Stoltz (1958) has pointed out, such an analysis is presumably not appropriate because the measures involved are more ipsative than normative in character. There appear to be occasions when violations of the rules may provide useful information, especially if an additional empirical check may be applied to the data. The present study is an example of one such violation. In the course of factor analyzing the intercorrelations of the Edwards variables as an exercise, a major factor emerged which appeared to be one of social desirability (SD). An empirical check was then applied to test this hypothesis.
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