This paper demonstrates the usefulness of distinguishing various aspects of masculinity and feminity in the study of sex roles among adolescents. Subjects, a national sample of boys and girls aged 12-16, were individually administered direct questions, checklists, rating scales, and symbolic and projective items. Results were as follows: (1) finer differentiation occurs in sets of those characteristics that are typically ascribed to the opposite sex; (2) girls are higher on Intimacy and Sociability scores, but especially high on Intimacy subscores; (3) within each sex, subscores of masculinity and femininity are correlated significantly and differentially with other sex role identification and adoption indices based on less direct symbolic and projective materials; and (4) girls, more than boys, tend to "genderize" the world around them. Findings suggest that there may be very different patterns or levels of integration of the masculine and the feminine, of the agentic and the communal. The author concludes that refined and differentiated measures of masculinity and feminity are needed. (Author/JLL)