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Intelligence: success and fitness.

D Lubinski1

  • 1Department of Psychology and Human Development, Vanderbilt University, Nashville, TN 37203, USA.

Novartis Foundation Symposium
|March 30, 2001
PubMed
Summary

General intelligence (g) is a widely validated construct in psychological science, impacting numerous life aspects. Its measurement and nomological network are crucial for accurate social science research, avoiding the Fallacy of the Neglected Aspect.

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Area of Science:

  • Psychometric science
  • Psychological science
  • Social science

Background:

  • General intelligence (g) is a construct with broad implications across human variation.
  • Construct validation research highlights the scientific power of understanding 'g'.
  • 'g' is measured by numerous assessment vehicles and influences many life domains.

Purpose of the Study:

  • To present the psychometric consensus on the construct of general intelligence (g) and its measurement.
  • To review phenomena central to g's nomological network and related peripheral phenomena.
  • To underscore the importance of including 'g' in social science research to prevent causal modeling errors.

Main Methods:

  • Review of psychometric literature on the consensus of general intelligence (g).
  • Examination of core phenomena within g's nomological network (e.g., abstract learning, information processing, novelty).
  • Analysis of peripheral phenomena linked to g (e.g., crime, health, income).

Main Results:

  • General intelligence (g) is a highly validated construct with extensive reach across human variation.
  • Core phenomena like abstract learning and information processing are central to g.
  • Peripheral phenomena such as crime, health risk behavior, and income are also associated with g.

Conclusions:

  • The construct of general intelligence (g) is a fundamental dimension in psychological science.
  • Omitting 'g' in social science research can lead to underdetermined causal models and the Fallacy of the Neglected Aspect.
  • Adhering to principles like Carnap's Total Evidence Rule can improve scientific reasoning by accounting for all relevant evidence, including 'g'.

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