In 1960, Project TALENT gathered demographic, cognitive, and socio-psychological data from a nationwide sample of high school students (N=375,000). An investigation of the antecedents and consequences of adolescent childbearing for young parents was conducted with all adolescent childbearers in the ninth and twelfth grade cohorts for whom 5- and/or 11-year follow-up data were available, and a representative sample of approximately 3000 classmates. Compared to their classmates, adolescent childbearers tended to have: (1) lower socioeconomic backgrounds; (2) lower academic grades; (3) fewer expressed academic interests and lower educational expectations; (4) lower educational levels; and (5) jobs of lower prestige. Adolescent childbearers had relatively high separation, divorce, and fertility rates by age 30. They expressed more regrets than their classmates about the age at which they married and about their failure to continue their education. Differences between adolescent childbearers and their classmates, which existed before the birth of the first child, grew larger after the first birth, remained substantial throughout the research investigation, and were more pronounced among females than among males. (NRB)