The High School and Beyond Senior Cohort Third Follow-Up Data File is provided. The data tape contains the following files: (1) the raw data file for each respondent (randomized identification number; first follow-up flags and composites; base year questionnaire and test data; first follow-up questionnaire data; dropout questionnaire data; transfer supplement data; early graduate data; first follow-up test data; selected school data; second follow-up questionnaire data; second follow-up flags, composites, and weights; third follow-up questionnaire data, and third follow-up flags, composites, and weights); (2) the record layout for the raw data file; (3) Statistical Analysis System (SAS) control cards; and (4) SPSS-X control cards. TYPE OF SURVEY: National Survey; Sample Survey; Follow-up Survey. POPULATION: High Schools in the High School and Beyond Study in 1980. FREQUENCY: Periodic. YEAR OF EARLIEST DATA: 1980. YEAR OF LATEST DATA: 1986. (TJH)