“…The figures characterizing this period range from about 50 per cent (Christensen and Gregg, 1970, for their non-Mormon population; Teevan, 1972) to a little less than 60 per cent (Cams, 1973;Hobart, 1972;Kaats and Davis, 1970;Luckey and Nass, 1969). If there was in the 20-25 years following World War II a second 20th-century "sex revolution," it apparently did not take the form of increased heterosexual behavior of males (Vener et al, 1972, emphasize this in cross-generation comparisons of high school students). The significant changes, rather, were the emergence of a more permissive attitude toward premarital coitus, selective weakening of the double standard, and an increase in experience among women (Kaats and Davis, 1970;Reiss, 1966).…”