In this article, the author examined the AG by noting that the NAEP reported math scores among 17-year-olds is upwardly biased when compared with the scores of this same cohort 4 years earlier when they were 13 years old. It is upwardly biased because an important event happens over the 4-year period between 8th and 12th grade--a large percentage…

The 2012 edition of the "Digest of Education Statistics" is the 48th in a series of publications initiated in 1962. The "Digest" has been issued annually except for combined editions for the years 1977-78, 1983-84, and 1985-86. Its primary purpose is to provide a compilation of statistical information covering the broad field…