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Levinsohn, Jay R.; Riccobono, John A. – 1975
The National Longitudinal Study of the High School Class of 1972 (NLS) is a large-scale longitudinal survey effort. The current data tapes contain base-year (1972) survey data integrated with first follow-up (1973) survey data. The base-year data consist of responses to a Student Questionnaire, the results of an ability test, and information from…
Descriptors: Academic Ability, Data Collection, Data Processing, Databases
Levinsohn, Jay; And Others – 1978
This Users Manual is the supporting documentation for the Public Use Data File from the National Longitudinal Study of the High School Class of 1972 (NLS). The data file contains certain merged data from the base year (1972), and first, second, and third follow-up NLS surveys for 22,652 cases. This volume contains only appendices K through Q, as…
Descriptors: Data Analysis, Data Processing, Databases, Followup Studies