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general intelligence

CognitionMay 26, 2026

Math-Music Link Nearly Vanished After Accounting for Intelligence

TL;DR: A 2026 Journal of Intelligence study of 170 adults found that math ability and music ability were only weakly related, and the link was reduced to almost zero after researchers accounted for general intelligence. Key Findings Adult ability groups were t…

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CognitionOctober 22, 2023

Genetics & Specific Cognitive Abilities: Highly Heritable (50%)

General intelligence, known as g or IQ, has long been the focus of cognitive genetics research. But what about more specific cognitive abilities, the building blocks that make up IQ? A sweeping new meta-analysis of over 740,000 twins surprisingly suggests: Spe…

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Math-Music Link Nearly Vanished After Accounting for Intelligence

Genetics & Specific Cognitive Abilities: Highly Heritable (50%)

The findings. The context. The caveats.