On the ACT, a test used nationwide for college admissions, composite scores for homeschooled students fluctuated between 22.3 in 2007 and 22.8 in 2014. (The highest possible score is 36.) Though not as high as scores from private school students, these rankings were 1.4 to 2.2 points above the average public school student. ACT, Inc. Trends in ACT composite scores among homeschooled students. 2015