Application of the Spielberger's State-Trait Anger Expression Inventory in clinical patients.
OBJECTIVE
To examine the factor structure of the Portuguese version of State-Trait Anger Expression Inventory (STAXI) in clinical patients.


METHODS
400 subjects from an internal medicine outpatient unit and 200 from a medical ward were recruited. Patients answered questions about clinical data, the STAXI, and the Beck Depression Inventory (BDI). Raw score of the STAXI was submitted to reliability assessment and factor analysis.


RESULTS
Internal consistency using the Cronbach's alpha coefficient was of 0.84. The STAXI significantly correlated with BDI at r=0.352 (p<0.01). The final solution of Principal Component Analysis identified five meaningful factors: Trait-Anger, State-Anger, Anger-Control, Anger-Out, and Anger-In. This structural model is close to the original theoretical construct of Spielberger's STAXI.


CONCLUSIONS
The Portuguese version of STAXI presented an adequate factorial structure that permits the evaluation of anger dimensions among clinical patients.
Azevedo
Flávia Barros de
FB
School of Medicine, University of São Paulo, São Paulo, SP, Brazil.
Wang
Yuan-Pang
YP
Goulart
Alessandra Carvalho
AC
Lotufo
Paulo Andrade
PA
Benseñor
Isabela Martins
IM
D000786:Anger; D001938:Brazil; D003430:Cross-Sectional Studies; D003466:Cultural Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D025341:Principal Component Analysis; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014175:Translating