Joint factor analysis of the Personality Research Form and the Jackson Personality Inventory: Comparisons with the Big Five

Personality Research Form (PRF) and Jackson Personality Inventory (JPI) scales were jointly factor analyzed on a sample of 528 respondents with the aim of comparing a five-factor solution to the Big Five personality factors. Comparisons with Saucier's Adjective Mini-Markers of the Big Five revealed that three of the PRF-JPI varimax factors had strong and nearly isomorphic relations to the Big Five Extraversion, Conscientiousness, and Intellect/Imagination factors, respectively The other two PRF-JPI factors were strongly related to Agreeableness and Emotional Stability but emerged as variants of these factors, rotated about 45 degrees from their traditional locations. Several PRF and JPI scales-including PRF Harm-avoidance, JPI Value Orthodoxy, JPI Energy Level, JPI Risk Taking, and JPI Social Adroitness-were not strongly related to any one or two of the Big Five factors. (C) 1998 Academic Press.