[Excerpt] This analysis examines how the relationship between high school courses and college attendance may have changed between the late 1970s and the late 1990s. The article uses two data sources: the National Longitudinal Survey of Youth 1979 (NLSY79), a nationally representative sample of 12,686 men and women born from 1957 to 1964 and living in the United States at the time of the initial survey, and the National Longitudinal Survey of Youth 1997 (NLSY97), a nationally representative sample of 8,984 men and women born from 1980 to 1984 and living in the United States at the time of the initial survey.