Do race differences among Hispanics correlate with IQ? I calculated the mean vocabulary scores from the General Social Survey for the following groups:
Mean vocabulary scores for those born in America:
Non-Hispanic white 6.47
White of Spanish descent 5.81
White Hispanic 5.63
Non-white, non-black Hispanic 5.34
Race is self-described: many white Hispanics are actually mestizos. So we see here that this measure of IQ is positively related to how much European ancestry you have. But the gap between Spanish whites and whites from other countries is larger than any other. Spanish whites are more similar to non-white Hispanics than other whites? Perhaps the explanation is more cultural than genetic?