Group Project: Why are quick people fast?

Scores on IQ tests are correlated with reaction time, and faster reaction time appears to be linked to better health, less disease and even longer lifespan. Interestingly brighter subjects are able to report briefly-presented stimuli more accurately. It is unclear exactly why RT and IT correlate with IQ.
In this project we will try to find out whether quicker perception times share the same link to intelligence as RT, or if it adds new information about the mind.

The research question:

Making the question scientific

  • Hypothesis 1
    • Hypothesis 1a


  • What?

Our tests

  1. Alice Heim S Vocabulary
  2. RT box
  3. IT screen


1. Bates, T. C. and Stough, C. (1998). Improved Reaction Time Method, Information Processing Speed, and Intelligence. Intelligence, 26. 53-62. doi.
2. Deary, I. J., Der, G. and Ford, G. (2001). Reaction times and intelligence differences - A population-based cohort study. Intelligence, 29. 389-399. doi.
3. Hick, W. E. (1952). On the rate of gain of information. Quarterly Journal of Experimental Psychology, 4. 11-26. doi.
4. Deary, I. J. and Stough, C. (1996). Intelligence and inspection time - Achievements, prospects, and problems. American Psychologist, 51. 599-608. doi.
5. Jensen, A. R. (1993). Why is reaction time correlated with psychometric g? Current directions in psychological science, 2. 53-56. doi. link. pdf