Preliminary empiric research with The Femininity Study identifies 10 factorially derived factors that indicate the general dimmensions of femininity with particular reference to female self-concept, feelings of inadequacy related to sexual characteristics, and deficiencies of female role-playing. Pilot studies indicate that wide differences occur across time both individually and in different demographic groups so that it is necessary to study the development of sex attitudes across time. Further cross-sectional and longitudinal studies are necessary to discover whether the derived factors are specific to females or distributed in differing degrees among humans in general. No assumptions were made as to whether the obtained factors are unipolar or bipolar, and the present data do not resolve this issue.