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Appendix A. Technical Note and Guide to Sources

Guide to Sources

The tables in this report present data from a variety of sources, which are described below. Most of these sources are federal surveys, and many are conducted by the National Center for Education Statistics (NCES). Standard errors for the estimates from these sample surveys are provided on the NCES website for this publication: http://nces.ed.gov/pubs2012/2012026/. A few sources are universe surveys, meaning that they collect information on the entire population of interest; therefore, there are no standard errors, because there is no error introduced by sampling.


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