The 1988 National Education Longitudinal Study (NELS:88) focuses on a sample of students enrolled in the eighth grade during the spring of 1988. Building on its predecessors (the National Longitudinal Study of the High School Class of 1972 and High School and Beyond), the study is designed to provide trend data about the critical transitions…

Gender differences in achievement were studied in five academic areas: (1) vocabulary; (2) language usage; (3) reading; (4) mathematics problem solving; and (5) using sources of information. Standardized achievement test scores for a sample of 3,002 students (1,642 females and 1,360 males) who were tested in each of 10 consecutive years, grades 3…