Characteristics of Public and Bureau of Indian Education Elementary and Secondary School Library Media Centers in the United States:
NCES 2009-322
June 2009

Table B-2.    Comparisons between frame distribution and base-weighted and final-weighted respondent distributions for school library media centers with an indication of potential sources of bias, by school type: 2007–08

Potential source of bias Base-weighted respondent distribution Final-weighted respondent distribution
Arizona, school level (secondary)  x  
California, enrollment (500-749 students)  x x
California, school level (elementary and secondary)  x x
Colorado, school level (secondary)  x  
Massachusetts, enrollment (500-749 students)  x  
Michigan, school level (elementary)    x
Minnesota, enrollment (200-499 students)  x x
Minnesota, school level (elementary)  x x
Minnesota, school level (secondary)  x  
National, enrollment (0-100 and 1000 or more students)  x x
National, enrollment (750-999 students)    x
National, locale (central city)  x x
National, locale (rural)  x  
National, school level (secondary and combined)  x x
Nebraska, school level (combined)  x  
State (California)  x  
Texas, school level (elementary)    x
Virginia, locale (suburban)    x
Washington, school level (secondary)  x  
Wyoming, enrollment (200-499)    x
Wyoming, school level (secondary)    x
National, region (all other states)  x  
NOTE: x denotes comparisons that are a potential source of bias. BIE refers to schools funded by the Bureau of Indian Education that are operated by the BIE, a tribe, or a private contractor and not by a regular school district.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schoolsand Staffing Survey (SASS), "Public School Library Media Center and BIE School Library Media Center Data Files," 2007–08.