Swedish adaptations of the Novaco Anger Scale-1998, the Provocation Inventory, and the State-Trait Anger Expression Inventory-2

The first Swedish adaptations of the Novaco Anger Scale-1998 (R. W. Novaco, personal communication, April 11, 2001), the Provocation Inventory, (R. W. Novaco, personal communication, April 11, 2001) and the State-Trait Anger Expression Inventory-2 (Spielberger, 1999) (named as NAS-1998-S, PI-S and STAXI-2-S respectively), were performed in this study. A sample of undergraduate males (N = 100) from Stockholm University completed the adaptations. Investigations of factor structures, relationships between scales, reliability, and construct validity of the adaptations were performed and the results were related to previous studies. The hypothesized factor structures were found for NAS-1998-S and PI-S; for STAXI- 2-S a modified 3-factor solution emerged. The adaptations had appropriate levels of reliability. The obtained model of construct validity revealed substantial similarity to Spielberger's (1999) multidimensional anger model.