title: Confirmatory factor analysis of personality structure in adult male rhesus monkeys (Macaca mulatta).
abstract: Reports from different laboratories have suggested that nonhuman primates have somewhat similar dimensions of personality. To date, however, no attempts have been made to statistically replicate a specific factor structure. In the present report, two independent observers recorded the behavior of 58 adult male rhesus monkeys, and then rated the animals with the use of a 50-item personality instrument. A confirmatory factor analysis (CFA) of the ratings resulted in the replication of a previously described four-factor personality structure [Maninger et al., American Journal of Primatology 61:73-83, 2003]. The first two dimensions-Sociability and Confidence-showed strong loadings and are similar to Affiliation and Agency dimensions in humans. The remaining dimensions-Equability and Irritability-were less clear, and it is possible that additional traits will have to be identified before a more robust structure can be established for these dimensions.
authors.affiliation: Department of Psychology, University of California-Davis, Davis, California 95616, USA. jpcapitanio@ucdavis.edu
authors.forename: John P
authors.initials: JP
authors.lastname: Capitanio
authors.forename: Keith F
authors.initials: KF
authors.lastname: Widaman
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D008253:Macaca mulatta / Q000523:psychology*; D008297:Male; D010551:Personality; D011594:Psychometrics; D012919:Social Behavior