The Teacher Follow-up Survey (TFS) is sponsored by the National Center for Education Statistics (NCES) on behalf of the U.S. Department of Education and is conducted by the U.S. Census Bureau. TFS is a follow-up survey of selected elementary and secondary school teachers who participated in the Schools and Staffing Survey (SASS). SASS is the largest, most extensive survey of K-12 school districts, schools, teachers, and administrators in the United States today. It provides extensive data on the characteristics and qualifications of teachers and principals, teacher hiring practices, professional development, class size, and other conditions in schools across the nation. TFS focuses on a sample of teachers who participated in SASS, including both teachers who left and teachers who remained in the K-12 teaching profession.
The primary sample design objective for the TFS was to support comparative analyses of stayers, movers and leavers for teachers classified by sector (public and private), grade level taught (elementary and secondary), minority status, and years in teaching (new and experienced). In order to achieve the design objective, the sample of SASS respondents was grouped into 216 strata based on TFS status (stayer, mover, leaver, unknown status), sector (traditional public, public charter, private), grade level taught (elementary, middle, and high school), minority status, and years in teaching (1 year, 2-3 years, 4 or more years).