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Table 8. Average class size for private school teachers in elementary schools, secondary schools, and schools with combined grades, by classroom type and affiliation: 2007–08

Elementary schools Secondary schools Combined grade schools
Affiliation Average class size for teachers in self-contained classes   Average class size for teachers in departmentalized instruction     Average class size for teachers in self-contained classes   Average class size for teachers in departmentalized instruction     Average class size for teachers in self-contained classes   Average class size for teachers in departmentalized instruction  
All private schools  18.1   19.8     18.4   19.9     15.4   16.3  
                             
Catholic- Parochial  20.4   23.7     #   21.0     16.2   17.6  
Catholic- Diocesan  21.3   22.0     25.7   23.3     35.3 ! 15.3  
Catholic- Private  20.9   23.1     11.3 ! 23.9     19.4   20.9  
Baptist  14.8   14.1       18.0     14.4   18.3  
Jewish  17.4   14.5     30.0   19.3     25.7    
                             
Lutheran  15.4   17.9     9.8 ! 17.8     15.9   18.7  
Seventh-Day Adventist  14.6   17.7     7.0   18.4     18.2   16.4  
Other Religious  14.6   15.1     16.0   15.9     15.2   15.8  
Nonsectarian- Regular  16.3   18.6     46.6 ! 11.5     18.1   15.5  
Nonsectarian- Special Emphasis  18.7   12.7     10.8   6.7     16.6   11.6  
Nonsectarian- Special Education  8.3   7.5     7.1   9.4     7.8   9.7  
# Rounds to zero.
! Interpret data with caution. The standard error for this estimate is equal to 30 percent or more of the estimate's value.
‡ Reporting standards not met.
NOTE: Among all school teachers, 28% teach self-contained classes in elementary schools, 1% in secondary schools, and 3% in combined schools; 17% teach departmentalized classes in elementary schools, 27% in secondary schools, and 6% in combined schools; 16% teach other types of classes, such as elementary subject specialist classes, team taught classes, and "pull-out" classes or "push-in" classes, in elementary schools, 2% in secondary schools, and 1% in combined schools.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Private School Teacher Data File," 2007–08.