Scott responds to comments about Lynn's IQ data, addressing how IQ testing might break down in under-educated populations and how this relates to the apparent disconnect between test scores and real-world capabilities.
Longer summary
This post discusses comments on a previous article about Lynn's IQ data and African nations. Scott addresses several key points raised in the comments, including: how IQ tests might break down when testing under-educated populations, the relationship between abstract vs. practical intelligence, the confirmation of Lynn's general findings by other data sources, genetic diversity in Africa, and the characteristics of people with very low IQs. The discussion touches on how people with supposedly very low IQs can still function well in certain contexts, suggesting that IQ tests might not capture all aspects of intelligence, especially in populations with limited exposure to abstract reasoning and formal education.
Shorter summary