An Italian validation study of the Buss-Perry Aggression Questionnaire (AQ)  [presentation, ppt, 227 kB] [short paper, doc, 189 kB]

Sommantico M., Osorio Guzmàn M., Parrello S., De Rosa B., Donizzetti A.
First author's affiliation: Dip. Scienze Relazionali "G. Iacono", Università degli Studi di Napoli "Federico II", Napoli, Italy

The main aim of this study was to analyse the psychometric properties of the pre-publishing Italian version of the Aggression Questionnaire (AQ) (Fossati, Maffei, Acquarini, Di Ceglie, 2003), considered one of the most useful self-report instruments to analyse aggressive behaviour in youths and adolescents, using a non clinical sample of students from different educational settings in the community of Naples (N = 860, 41% males & 59% females; 445 subjects attending secondary high schools & 415 subjects attending universities; average age = 20.10, SD = 3.70). It was necessary because the psychometric properties of this Italian version of the questionnaire were evaluated using a large clinical and non clinical sample of subjects only from north and centre Italy population. The results of the exploratory factor analysis, effectuated using a principal component analysis and omitting some items of the original scale, confirm the four-factors structure individuated by different authors, in different countries (Buss and Perry, 1992; Nakano, 2001; Morren, Meesters, 2002; von Collani, Werner, 2005; Gallardo-Pujol et al., 2006; Bouchard, 2007) with some specificities: while physical and verbal aggression represent the instrumental or motor component of the aggressive behaviour, and hostility as the cognitive component of the same, anger factor, as discussed, leads to a more complex interpretation. Instead, results of a successive confirmatory factor analysis, based on an exploratory factor analysis effectuated with principal axis factorisation, and omitting some items, show a three-factors structure.