Evidencias de validez y fiabilidad de las Puntuaciones del STAXI-2 para población general y hospitalaria: Estudio con una muestra de adultos de República Dominicana

Abstract

Resumen Para evaluar la experiencia, expresión y control de la ira, Spielberger construyó el Inventario State-Trait Anger Expression Inventory . El presente trabajo se propuso evaluar la validez y confiabilidad de las puntuaciones de la versión española del STAXI-2 para población general y hospitalaria de República Dominicana. Con este fin se analizó su estructura factorial, se evaluó la consistencia interna del instrumento, y se obtuvieron evidencias de validez mediante el contraste de grupo (población general vs. hospitalaria). Para realizar el estudio se trabajó con muestra de total de 1034 participantes, de población general ( N = 792) y hospitalaria ( N = 242) de la ciudad de Santiago de los Caballeros, República Dominicana. El análisis factorial confirmatorio permitió verificar el ajuste Abstract To measure the experience, expression and control of anger, Spielberger built the Inventory State-Trait Anger Expression Inventory. This paper under took to evaluate the validity and reliability of the scores of the Spanish version of the STAXI-2 for the general and hospital population of the DR. To this end, the factorial structure was analyzed, the internal consistency of the instrument was evaluated, and evidence of validity was obtained by contrasting groups (general vs. hospital population). To conduct the study, we worked with a sample of 1034 par-ticipants from both the general population (N = 792) and hospital population (N = 242) from the city of Santiago de los Caballeros, Dominican Republic. The confirmatory factor analysis allowed to verify the adjustment of the original models for all anger scales (i.e. three-factor model for the anger-state scale, two-factor model for the anger-trait scale, and four-factor model for the scale of control and expression of anger). All the dimensions reached acceptable or op-timal reliability indexes. Finally, the scales adequately discriminated between the general and hospital population, especially when the psychiatric sample was considered. Over-all, the results allow us to conclude that the scores of the Spanish version of the STAXI-2 are valid and reliable to measure the state trait, and control-expression of anger in the DR.