The function and structure of a data base system called RIBYT (Review It Before You Test) is described. RIBYT simultaneously controls and associates questions in question pools for many courses of instruction. The data base stores questions created by both faculty and students and is used for formal testing and student self-assessment. The…

The National Longitudinal Study of the High School Class of 1972 (NLS) critical data base contains 151 items (plus background information) from the base year and followup questionnaires; about thirty-seven percent of all items. This set of critical items consists of: (1) basic demographic variables; (2) items necessary for defining activity states…