We present an adaptation of Social Dominance Scale in order to study its psychometric properties in a Chilean sample, and to relate it to other relevant measures and psychosocial variables (authoritarianism, nationalism, patriotism, etc.). Its goal is to explain the phenomenon of gender invariance and to see if the scale behaves according to a standard univariate or multivariate structure. The sample was made up of 304 participants and the results indicate that it would be a valid and reliable instrument for detecting the dominance in our social environment. The results show greater compatibility with the structure of two factors than with the original univariate model, and confirm the assumption of gender invariance.