An assessment of the Edwards Personal Preference Schedule from the perspective of the five-factor model.
We examined the validity of need scales of the Edwards Personal Preference Schedule (EPPS) by correlating them with a measure of the five basic factors of personality; we also considered test format as a possible source of invalidity. Three hundred thirty (223 women, 107 men) undergraduate students completed both the NEO Personality Inventory (NEO-PI)--a measure of the five factors--and one of two versions of the EPPS. Results show that both ipsative and normative versions of the EPPS could be meaningfully interpreted within the five-factor model, although the ipsative, forced-choice format of the standard EPPS apparently lowered validity coefficients and decreased convergent and discriminant validity. We argue that the five-factor model can provide a useful interpretive context for evaluating many clinical measures.
Piedmont
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RL
National Institute on Aging, Gerontology Research Center, Baltimore, MD 21224.
McCrae
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RR
Costa
P T
PT
D000328:Adult; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D010552:Personality Assessment / Q000706:statistics & numerical data; D010553:Personality Development; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011594:Psychometrics; D012016:Reference Values