Author(s): Carvalho, Catarina ; R. Pinto, Isabel ; Costa-Lopes, Rui ; Paéz, Darío
Date: 2025
Origin: Revista Psicologia
Subject(s): social dominance orientation; intergroup relations; psychometric properties; scale validation; Social dominance orientation; intergroup relations; psychometric properties; scale validation
Understanding why hierarchical social systems thrive and persist has been an important issue for the social sciences. Social dominance orientation (SDO) is considered one of the most important measures to study intergroup attitudes and behavior and how hierarchical social systems are maintained. In this study (N = 313) we assessed the psychometric proprieties of the European-Portuguese version of the SDO7 scale and examined the proposed two-factor solution corresponding to the two SDO subdimensions (SDO-D and SDO-E). Results of the confirmatory factor analysis showed that both the one-factor (full scale) and the two-factor solution model have good indicators of model fit. Nevertheless, results also showed that, although the SDO full scale was positively correlated with all the related constructs (e.g., right-wing authoritarianism, meritocracy), each subdimension correlated with them differently. Thus, considering and examining the two subdimensions separately should allow to understand and predict, with more precision, intergroup attitudes, and behaviors.
Understanding why hierarchical social systems thrive and persist has been an important issue for the social sciences. Social dominance orientation (SDO) is considered one of the most important measures to study intergroup attitudes and behavior and how hierarchical social systems are maintained. In this study (N = 313) we assessed the psychometric proprieties of the European-Portuguese version of the SDO7 scale and examined the proposed two-factor solution corresponding to the two SDO subdimensions (SDO-D and SDO-E). Results of the confirmatory factor analysis showed that both the one-factor (full scale) and the two-factor solution model have good indicators of model fit. Nevertheless, results also showed that, although the SDO full scale was positively correlated with all the related constructs (e.g., right-wing authoritarianism, meritocracy), each subdimension correlated with them differently. Thus, considering and examining the two subdimensions separately should allow to understand and predict, with more precision, intergroup attitudes, and behaviors.
