Evidências de validade de construto e precisão da escala geral do mundo justo / Evidence of construct validity and reliability of the general just world scale

RESUMO

Um único componente que explicou 37,11 por cento da variância, com índice de precisão (Alfa de Cronbach) de 0,66. Realizando uma análise fatorial confirmatória foi possível corroborar o modelo teórico unifatorial. Concluiu-se que este instrumento é adequado psicometricamente, podendo ser utilizado para fins de pesquisa. Além disso, as pontuações nesta medida não são afetadas por variáveis de natureza demográfica.

ABSTRACT

This study aimed to validate the Just World General Scale to the Brazilian milieu, assembling empirical evidences of its construct validity and reliability. Participated in this research 254 undergraduate students of a private university in the Aracajú city, SE. Most of them were studying Psychology (44.9 percent) and Law (49.6 percent), female (64.8 percent) and with a mean age of 21.8 years (DP = 6.34). Principal Components Analysis revealed one component, taking into account 37.11 percent of the variance and reliability (Cronbach’s Alpha) of 0.66. A confirmatory factor analysis was conducted to confirm the theoretical model with one factor. It was concluded that it is a psychometrically reliable instrument and it can be used for research purposes. Moreover, its scores are not influenced by participants’ demographic characteristics.