One underresearched area is that of international differences in the initiation of sexual intercourse. It was not beliefs that delayed sexual debut although religious persons were less likely to initiate sex as much as alternatives and opportunities that affected when young women became sexually active Herold, Children appear to learn the behavior of models without actual rewards and punishments. Work by Billy and Udry b shows that best male friends do influence females' sexual activity. They are said to be particularly egocentric, present oriented, and to believe that they have a special immunity to danger, including unwanted pregnancies Chilman,
Katelynn. Age: 31.
These contexts represent different societal norms and values which affect the values, norms and beliefs each individual holds, including those of sexuality and fertility.
Ellen. Age: 25.
These physical, cognitive and social aspects of the individual determine his or her utility or reward structure, i. There is no association at all between perceived attitudes of same sex best friend and actual friend attitude for males and females alike. Blacks were 4 times as likely as whites to initiate sex by age 15 or