Recent research from the Pew Research Center confirmed that people with high education degrees partner with others with similar education levels. The study analyzed the Federal Reserve Board's Survey of Consumer Finances (SCF) report from 2019.
The study by Pew researcher Richard Fry found that this trend is even more significant with parents with higher education degrees. Additionally, Fry found, "When first-generation college graduates do partner with another college graduate, it is more likely that their partner will also be a first-generation graduate."
This research shows the cycle of education continues through generations, and individuals earn more as they move from first-generation students to continuing-generation college graduates.