Cognitive Sciences Stack Exchange is a question and answer site for practitioners, researchers, and students in cognitive science, psychology, neuroscience, and psychiatry. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is / are there any scientific studies on factors which affect the general intelligence (g) factor?

I did a Google search, but could not find any academic papers on the topic.

share|improve this question

So you're basically asking what are the causes of interpersonal differences in intelligence as typically measured by standardised psychometric tests. This question forms the basis for a large proportion of the literature on intelligence. For example see a journal like Intelligence.

For a review you could read Intelligence: Knowns and Unknowns

A few quick observations include that

  • Genetics is a major cause
  • Environmental causes are often less well understood
  • Head start and related programs designed to increase intelligence typically lead to limited long term gains
  • Severe environmental factors will negatively affect intelligence
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.