Comparing Private Schools and Public Schools Using Hierarchical Linear Modeling. The National Assessment of Educational Progress (NAEP) is a nationally representative and continuing assessment of what America’s students know and can do in various sub- ject areas. For over three decades, assessments have been conducted periodically in reading, mathematics, science, writing, history, geography, and other subjects.
NAEP is a congressionally mandated project of the National Center for Education Statistics within the Institute of Education Sciences of the U.S. Department of Education. The Commissioner of Education Statistics is responsible, by law, for carrying out the NAEP project through competitive awards to qualified organizations