America in Crisis • 119 implied HN points • 31 Aug 23
- Culture plays a crucial role in group differences in test scores and IQ measurements, alongside genetics and environment.
- IQ scores are influenced by both genetic and cultural components, with culturally-loaded tests showing higher heritability.
- Over time, group differences in IQ can be attributed more to the cultural component rather than the genetic one, with national IQ averages possibly rising with economic growth.