An individual may be sex typed (masculine male or feminine female), cross typed (masculine female or feminine male), or not sex typed (androgynous or undifferentiated). The use of psychological sex typing, in place of or in addition to gender, as an independent or mediating variable should, given reliable measurement, enhance the validity of research results by a more detailed accounting for the variance of the dependent variables. With this in mind, a study investigated two questions. (1) Does analysis of dependent measures over psychological sex type produce results meaningfully different from those obtained when using the traditional breakout by sex and, if so, what differences are observed? (2) Since the traits under study are inferred from performance on paper and pencil measures and are presumed to have social roots, what relationships are observed among them? Data were gathered from 86 college students enrolled in a basic course in interpersonal communication. Among the results is an indication that the combination of gender and sex-type variables improves the accounting for the variance only nominally, and that the use of sex type variable provides opportunity for the formulation of more precise theoretical constructions. (HOD)