The rising high school graduation rates may not be truly indicative of higher academic achievement, because of grade inflation, as documented in a 2022 article "High school grades are up, but test scores aren’t. Why?" <a href="https://www.chalkbeat.org/2022/3/16/22979947/high-school-grades-inflation-federal-naep-test-scores/" rel="nofollow">https://www.chalkbeat.org/2022/3/16/22979947/high-school-gra...</a>.