In Arkansas, Kansas, Missouri and Texas, students outperformed Oklahoma students in NAEP math and reading proficiency (aside from fourth-grade reading in Texas). A much larger share of test takers in Arkansas and Texas got a high AP score. This is a huge problem for Oklahoma’s long-term economic growth. Basically, the workforce produced by public schools in the average state is far more proficient in reading and math than in Oklahoma. This can offset the benefits of a pro-business tax and regulatory environment.