What IQ Tests Test

@article{Richardson2002WhatIT,
  title={What IQ Tests Test},
  author={Ken Richardson},
  journal={Theory \& Psychology},
  year={2002},
  volume={12},
  pages={283 - 314}
}
As we approach the centenary of the first practical intelligence test, there is still little scientific agreement about how human intelligence should be described, whether IQ tests actually measure it, and if they don't, what they actually do measure. The controversies and debates that result are well known. This paper brings together results and theory rarely considered (at least in conjunction with one another) in the IQ literature. It suggests that all of the population variance in IQ scores… 

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