The purposes of this study were to determine whether there were significant differences in knowledge and attitudes among fifth-, ninth- and twelfth-grade students after having been taught a unit on Human Growth, Development and Sexuality and to determine whether there were significant differences between these students and students not receiving the unit. The study attempted to determine at which of the three levels the human sexuality unit was most effective in transmitting knowledge and changing attitude in the area of human sexuality. An attempt was made to determine if there were significant differences between males and females in the knowledge obtained or attitude changes.

This study investigates whether sex information, experience, or attitudes are related to self-concept. The subjects were 120 students enrolled in a university sex-education course, All students completed questionnaires measuring sex information, experience, and attitudes. The Tennessee Self-Concept Scale was given to obtain self-concept scores. Correlation coefficients and correlation ratios were computed between sex information, sexual experience, sex attitudes, self-concept, and course grades. No pattern of relationships emerges between self-concept and the other variables studied. A strong negative correlation (P < .01) was found between sex experience and sexual attitude orthodoxy. Consistent with other research, males report more sex experience (D < .01) and more liberal sex attitudes (P < .01) than females.