National Assessment of Educational Progress, 2015
The National Assessment of Educational Progress, 2015 (NAEP 2015) is a study that is part of the National Assessment of Educational Progress (NAEP) program; program data is available since 1990 at <https://nces.ed.gov/nationsreportcard/naepdata/>. NAEP 2015 (https://nces.ed.gov/nationsreportcard/) is a cross-sectional …