Final answer:
The decline in teen pregnancy between 1991-2011 was influenced by improved sex education, access to contraceptives, societal shifts in gender roles, and changing attitudes towards premarital sex and family planning.
Step-by-step explanation:
The decline in teen pregnancy between 1991-2011 can be attributed to multiple factors. These include improved sex education and access to contraceptives, which have been shown to be more effective in reducing unintended pregnancies. Additionally, social changes, such as greater equality for women in the workplace and their roles within the family, have also influenced the image of the family and women's decisions concerning reproduction.
The popularization of contraception played a significant role in influencing sexual behavior. Moreover, sociological studies indicate that modern youth still value monogamy but have realistic views about premarital sex, which may affect their sexual behaviors and choices regarding pregnancy.
Research has consistently supported that comprehensive sex education emphasizing safer sexual practices and contraception is more effective than abstinence-only programs.
Most U.S. adults support this approach, as indicated by the data suggesting that two-thirds of Americans believe education about safer sexual practices is more effective than promoting abstinence alone. Furthermore, societal developments like increased support for girls' education, decreased child marriages, and shifting attitudes toward unmarried childbearing may also contribute to a reduction in teen pregnancies.