The criteria of convergent and discriminant validation proposed by Campbell & Fiske (1959) were applied to a multitrait‐multimethod matrix constructed from the intercorrelations of 15 need scales found in the Adjective Check List (ACL), the Edwards Personal Preference Schedule (EPPS), and a normative modification of the EPPS (N‐EPPS). The evidence, based upon 131 male and female college freshmen, supported the convergent and discriminant validity of the 15 needs when the two forms of the Edwards inventory were compared. When these two instruments were compared with the ACL, the criteria of convergent and discriminant validity were met, but only to a minimal extent.
Read full abstract