Table S28 Standard errors for the percentage of public school students in middle and high school grades taught by teachers without a major or certification in the field they teach, by subject area: 1999–2000

SOURCE: Seastrom, M.M., Gruber, K.J., Henke, R.R., McGrath, D.J., and Cohen, B.A. (2002). Qualifications of the Public School Teacher Workforce: Prevalence of Out-of-Field Teaching 1987-88 to 1999–2000 (NCES 2002-603), tables C-9 and C-10. Data from U.S. Department of Education, NCES, Schools and Staffing Survey (SASS), "Public Teacher Questionnaire," 1999–2000 and "Charter Teacher Questionnaire," 1999–2000.