One-third of U.S. Latinos say they identify as “mestizo,” “mulatto” or some other mixed-race combination, according to a 2014 Pew Research Center survey released this weekend. 

According to the survey, those who identify as mixed race, mestizo or mulatto are more likely to be U.S. born than those who do not (44 percent compared to 37 percent). 

Additionally, they have a higher educational attainment (45 percent have some college or more, compared to 27 percent).

According to Ana Gonzalez-Barrera, research associate at Pew Research Center, these findings reflect the challenges the U.S. Census Bureau faces when measuring Hispanic racial identity. 

The term mestizo means mixed in Spanish, and is generally used throughout Latin America to describe people of mixed ancestry with a white European and an indigenous background. 

The term “mulatto” – mulato in Spanish – commonly refers to a mixed-race ancestry that includes white European and black African roots.