Further Evidence of the Validity of the O'Brien Multiphasic Narcissism Inventory

Abstract

This study examined further aspects of the validity of the O'Brien Multiphasic Narcissism Inventory. The current research sought to determine whether the factorial structure of the O'Brien scales derived from a clinical population resembled that extracted from responses of the normal subjects studied previously and whether the clinical population would score higher than the normal subjects. Analyses showed that the O'Brien scales were highly congruent for the two populations and the clinical population scored significantly higher on all three of the O'Brien scales than the normal population. It was concluded that the results provided additional evidence for the validity.