The INDSCAL technique (Carroll&Chang, 1970) offers the possibility of assessing the relative importance of various dimensions of social judgment for individual actors. It is used here to demonstrate the psychological multidimensionality of an ostensibly unidimensional Guttman scale, Reiss' scale of premarital sexual permissiveness. The results suggest a two‐dimensional model of judgments of the permissiveness of various sexual encounters. The scalability of individuals' response patterns is shown to be a function of the relative importance of the two dimensions revealed by the INDSCAL technique. Implications for the interpretation of Guttman scales are discussed, and the INDSCAL technique is suggested as providing a tool which is well suited to the analysis of the structure of sexual perspectives.