English and Math GPA

By: Fagan, Patrick, Johnson, Kirk A, and Jonathan Butcher.

These researchers studied data from the National Longitudinal Study of Adolescent Health and found that, on average, teens from intact married families had the highest GPA in English and mathematics. The average GPA for children from intact married families was 2.9; for children with stepparents, cohabiting biological parents, or a divorced single parent it was 2.6; and for children with a cohabiting mother and boyfriend or never-married single parent it was 2.5.

A portrait of family and religion in America: Key outcomes for the common good: Heritage Foundation: Washington, D.C.