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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Psychol Sci. 2008 Nov;19(11):1124–1130. doi: 10.1111/j.1467-9280.2008.02213.x

Table 1.

Percent of Families and Levels of Educational Achievement for the State of Colorado, Proband Group, and No School History Group.
Educational Achievement Colorado Probands No School History
Less than 9th grade 4.8 1.0 0.5
Less than H. S. diploma 8.2 11.9 2.1
H. S. diploma 23.2 16.1 6.2
1 year of College 24.0 21.0 12.0
2 years of college/A. A. 7.0 21.6 17.5
4 years of college/B. A 21.6 18.1 33.9
5+ years of college 11.1 9.2 26.6

Note: Colorado information based on year 2000 Census.