Individual differences, aging, and IQ in two-choice tasks

@article{Ratcliff2010IndividualDA,
  title={Individual differences, aging, and IQ in two-choice tasks},
  author={R. Ratcliff and A. Thapar and G. McKoon},
  journal={Cognitive Psychology},
  year={2010},
  volume={60},
  pages={127-157}
}
  • R. Ratcliff, A. Thapar, G. McKoon
  • Published 2010
  • Psychology, Medicine
  • Cognitive Psychology
  • The effects of aging and IQ on performance were examined in three two-choice tasks: numerosity discrimination, recognition memory, and lexical decision. The experimental data, accuracy, correct and error response times, and response time distributions, were well explained by Ratcliff's (1978) diffusion model. The components of processing identified by the model were compared across levels of IQ (ranging from 83 to 146) and age (college students, 60-74, and 75-90 year olds). Declines in… CONTINUE READING

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