Bill Gates needs to get his facts straight on test scores

Au contraire Mr. Gates, not according to the NAEP test.
Mr. Richard Rothstein with the Economic Policy Institute states in a report last year titled Fact Challenged Policy:
The only longitudinal measure of student achievement that is available to Bill Gates or anyone else is the National Assessment of Educational Progress (NAEP). NAEP provides trends for 4th, 8th, and 12th graders, disaggregated by race, ethnicity, and poverty, since about 1980 in basic skills in math and reading (called the