Validity of the PAI Interpersonal Scales for Measuring the Dimensions of the Interpersonal Circumplex

Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06519, USA.
Journal of Personality Assessment (Impact Factor: 2.01). 01/2011; 93(1):33-9. DOI: 10.1080/00223891.2011.529013
Source: PubMed

ABSTRACT Two studies evaluated the validity of the interpersonal scales, Dominance (DOM) and Warmth (WRM), from the Personality Assessment Inventory (PAI; Morey, 1991, 2007) to measure the 2 dimensions of the interpersonal circumplex (IPC). In Study 1, 114 college freshmen completed the PAI and the Interpersonal Adjectives Scale (IAS; Wiggins, 1995). In Study 2, 170 college students completed the PAI and the Inventory of Interpersonal Problems-Short Circumplex (IIP-SC; Soldz, Budman, Demby, & Merry, 1995). The results of both studies supported the convergent validity of DOM and WRM, although discriminant validity was stronger using the IIP-SC as the criterion. Circumplex projections placed DOM and WRM in the appropriate segments of both the IAS and IIP-SC. These findings provide additional support for the validity of the PAI interpersonal scales as measures of the primary dimensions of the IPC.

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