Gray's model of personality and aggregate level factor analysis
Article first published online: 24 SEP 2003
Copyright © 2003 John Wiley & Sons, Ltd.
European Journal of Personality
Volume 17, Issue 5, pages 397–411, September/October 2003
How to Cite
Jackson, C. J., Levine, S. Z. and Furnham, A. (2003), Gray's model of personality and aggregate level factor analysis. Eur. J. Pers., 17: 397–411. doi: 10.1002/per.490
- Issue published online: 22 OCT 2003
- Article first published online: 24 SEP 2003
- Manuscript Accepted: 5 FEB 2003
- Manuscript Received: 21 NOV 2001
Previous research shows that correlations tend to increase in magnitude when individuals are aggregated across groups. This suggests that uncorrelated constellations of personality variables (such as the primary scales of Extraversion and Neuroticism) may display much higher correlations in aggregate factor analysis. We hypothesize and report that individual level factor analysis can be explained in terms of Giant Three (or Big Five) descriptions of personality, whereas aggregate level factor analysis can be explained in terms of Gray's physiological based model. Although alternative interpretations exist, aggregate level factor analysis may correctly identify the basis of an individual's personality as a result of better reliability of measures due to aggregation. We discuss the implications of this form of analysis in terms of construct validity, personality theory, and its applicability in general. Copyright © 2003 John Wiley & Sons, Ltd.