Sex in transition, 1900-1980.

Changes in the proportion of college-aged males and females participating in coital relationships are analyzed through a review of 35 studies conducted between 1903 and 1980. Two major trends are apparent: there has been a major increase in the proportion of young people reporting intercourse, and the proportion of females reporting coital involvement has increased more rapidly than the proportion of males, although the initial base for males is greater. Prior to 1970, about twice as many college men as women reported having had intercourse; since 1970, the proportions of men and women reporting coital involvement are nearly equal. These changes are seen as supportive of major shifts in the standards governing sexual behavior from the double standard to the single standard of permissiveness with affection [Reiss, I. F. (1967).The Social Context of Premarital Sexual Permissiveness, Rinehart and Winston, New York] to the current standard of intercourse being appropriate in love relationships (without the requirement of progression toward marriage) and permissible in causal relationships without exploitation.