Personality types and self-reported aggressiveness

Applying a person-centered approach, three personality types based on the NEO-FFI scales were identified in a sample of N = 141 participants by means of clustering methods. They were described as a resilient (low N, high E), a non-desirable (high N, low E, A, and C), and a reserved overcontrolled prototype (low E and 0, high A and C). The prototypes were related to the level of aggressiveness, assessed by the Buss-Perry Aggression Questionnaire (AQ). Results indicate that the three clusters differ mainly in their levels of hostility, verbal aggressiveness, and with respect to anger. With respect to total aggressiveness, the non-desirable prototype displayed the highest and the reserved prototype the lowest AQ scores. The results are discussed in relation to studies based on a variable-centered approach. Possible implications for treatment and research are addressed. (C) 2009 Elsevier Ltd. All rights reserved.