Abstract
The focus of this study was to determine whether aggression adds incremental validity above and beyond the Big Five personality factors in predicting grades. An archival data analysis was used in this study. The data consisted of a sample of eighth grade students. The students completed the Personal Style Inventory Adolescent (PSI-A), which is a 120-item survey instrument designed to measure the Big Five personality factors and aggression. Results indicated that aggression does add incremental validity above and beyond the Big Five. The results also indicated that the Big Five were significantly correlated with academic performance. When aggression was added into the statistical model, conscientiousness, openness and aggression were significantly correlated with grades.
Notes
*p < .05
**p < .01
***p < .001.
*p < .05
**p < .01
***p < .001.
*p < .05 (two-tailed)
**p < .01 (two-tailed)
***p < .001 (two-tailed).