Genetic and Environmental Influences on the Development of Intelligence

@article{Bartels2002GeneticAE,
  title={Genetic and Environmental Influences on the Development of Intelligence},
  author={M. Bartels and M. Rietveld and G. van Baal and D. Boomsma},
  journal={Behavior Genetics},
  year={2002},
  volume={32},
  pages={237-249}
}
Measures of intelligence were collected in 209 twin pairs at 5, 7, 10, and 12 years of age, as part of a longitudinal project on intelligence, brain function, and behavioral problems. Intelligence was measured at 5, 7, and 10 years of age with the RAKIT, a well-known Dutch intelligence test, consisting of 6 subscales. At 12 years of age, the complete WISC-R was administered (12 subscales). Both intelligence tests resulted in a measure of full-scale IQ (FSIQ). Participation rate is around 93% at… Expand
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