Hereditarian predictions

Putting these in writing in a single place for ease of reference. Unfortunately, no one wrote down all these predictions some years ago to show they really were predictions, but one could probably find textual evidence for many of these in various papers and blogposts. Some of them have been supported already, and some are…

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Chanda Chisala did not come up with the UK race gaps argument

Many people seem to have this impression. These arguments go back more than 10 years. This post quotes various UK newspaper articles going back to 2006: Underperformance of Poor White British Boys. Racial Reality. June 2, 2010 John Fuerst is probably the first hereditarian to seriously grapple with these issues: Partially falsified. Unwelcome Discovery. February…

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Motivation and IQ scores

Der er is a famous meta-analysis showing that motivation affects IQ scores to a substantial degree: Duckworth, A. L., Quinn, P. D., Lynam, D. R., Loeber, R., & Stouthamer-Loeber, M. (2011). Role of test motivation in intelligence testing. Proceedings of the National Academy of Sciences, 108(19), 7716-7720. Intelligence tests are widely assumed to measure maximal…

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National IQs: measurement invariance studies

A lot of national intelligence criticism focuses on the measurement validity. Are the scores really comparable across countries? Most of the criticism is armchair stuff, or vaguer claims based on smaller studies such as this one: Multiple examples from different societies demonstrating that https://t.co/drJKXid5W0 — Will (@Evolving_Moloch) August 21, 2020 However, there are proper statistical…

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