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Digest of Education Statistics: 2012
Digest of Education Statistics: 2012

NCES 2014-015
December 2013

Appendix A.1. Guide to Sources

The information presented in this report was obtained from many sources, including federal and state agencies, private research organizations, and professional associations. The data were collected using many research methods, including surveys of a universe (such as all colleges) or of a sample, compilations of administrative records, and statistical projections. Brief descriptions of the information sources and data collection methods are presented below, grouped by sponsoring organization. More extensive documentation of a particular survey's procedures does not imply more problems with the data, only that more information is available.