Table C-2. The number of cases in the School District data file, by respondent and source of data: 2007

Table C-2. The number of cases in the School District data file, by respondent and source of data: 2007–08

Respondent	Source of data in the district file	Number of cases
Total		4,600
Regular districts	School District Questionnaire	3,950
State run schools¹	Public School Questionnaire (With District Items)	40
Schools in single-school districts	Public School Questionnaire (With District Items)	470
Independent charter schools	Public School Questionnaire (With District Items)	140
¹These include schools for the blind, career and technical centers, and schools in detention centers run by a state.
NOTE: Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Public School District and Public School Data Files," 2007–08.