| Potential source of bias | Base-weighted respondent distribution | Final-weighted respondent distribution |
|---|---|---|
| Public | ||
| National, locale (central city) | x | x |
| National, locale (rural) | x | |
| Nebraska, school level (secondary schools) | x | |
| Private | ||
| Affiliation (Lutheran) | x | |
| Affiliation (Nonsectarian-Regular) | x | |
| Baptist, enrollment (1-100 and 200-499 students) | x | |
| Jewish, school level (elementary) | x | |
| Other Religious, locale (suburban) | x | |
| Nonsectarian-Regular, locale (central city) | x | x |
| NOTE: x denotes comparisons that are a potential source of bias. No potential bias was evident among the Bureau of Indian Education-funded schools due, to some extent, to small subpopulation cell sizes. | ||
| SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Public School, BIE School, and Private School Data Files," 2007–08. | ||
