- NASDAE-Adult Education published research about the state of Adult Education
- Federal Reserve Economic Data (FRED) on Working Age Population
https://fred.stlouisfed.org/series/LFWA64TTUSM647S
- COABE-Coalition on Adult Education and the Move Ahead with Adult Ed Campaign
https://coabe.org/moveahead-with-adult-ed/
- GED® Testing Service-passing scores
https://GED.com/about_test/scores/
- HISET®- High School Equivalency Test
https://hiset.ets.org/tcs-ae/about/scoring-credential/
- TASC™-Test Assessing Secondary Completion (No longer available)
https://tasctest.com/demo-home/test-takers/after-the-test/pass-scores/