Schools and Staffing Survey, 1990-91
The Schools and Staffing Survey, 1990-91 (SASS 90-91), is a study that is part of the Schools and Staffing Survey (SASS) program; program data is available since 1987-88 at <https://nces.ed.gov/surveys/sass/dataproducts.asp>. SASS 90-91 (https://nces.ed.gov/surveys/sass) is a cross-sectional survey that covers a wide …