Reaction Time Explains IQ's Association with Death

  title={Reaction Time Explains IQ's Association with Death},
  author={Ian J. Deary and Geoff Der},
  journal={Psychological Science},
  pages={64 - 69}
  • I. DearyG. Der
  • Published 1 January 2005
  • Psychology, Medicine
  • Psychological Science
Lower IQ is associated with earlier death, but the cause of the relationship is unknown. In the present study, psychometric intelligence and reaction times were both significantly related to all-cause mortality in a representative sample of 898 people aged 56 years who were followed up with respect to survival until age 70. The association between IQ and mortality remained significant after adjusting for education, occupational social class, and smoking, all of which have been hypothesized as… 

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