Scores on IQ tests are highly heritable. Whether IQ is highly heritable depends on whether you define it as the result of the test or something that the tests

Scores on IQ tests are highly heritable. Whether IQ is highly heritable depends on whether you define it as the result of the test or something that the tests are trying to measure. A lot of tests tend to embed a ton of middle-upper-class cultural touchstones that you don't even realize are there until you find yourself explaining them to a test-taker who's never been camping or on a boat. EDIT: The concept of "intelligence" that IQ purports to measure is probably highly heritable as well, of course. I'm just cautioning against drawing too many straight lines from test results, particularly on the topic of diversity and intelligence.