Development of the Japanese Version of the Short Social Dominance Scale (SSDO)

Social dominance orientation (SDO), the general attitudes towards group-based inequality and dominance, is a key tenet of social dominance theory, and previous studies have found SDO is correlated with a wide range of variables related to intergroup attitudes. In this research, we developed the Japanese version of the short social dominance orientation scale (J-SSDO). We collected 632 Japanese participants across different regions in Japan and investigated a factor-structure, internal reliability and construct validity of J-SSDO. Overall, internal reliability of J-SSDO was low, while it was similar to that of the original scale especially in Asian languages. Yet, we found medium-to-large correlations between J-SSDO theoretically relevant variables such as attitudes towards aid to the poor, protecting ethnic/religious minorities, and more women in leadership positions.