General intelligence factor

The general intelligence factor (abbreviated g) is a widely accepted but controversial construct used in the field of psychology (see also psychometrics) to quantify what is common to the scores of all intelligence tests. The phrase "g theory" refers to hypotheses and results regarding g's biological nature, stability/malleability, relevance to real-world tasks, and other inquiries.

External links

• The General Intelligence Factor PDF - Good article for laymen
• The Basic Period of Individual Mental Speed, Underlying IQ
• A Genomwide Scan for Genes Underlying General Cognitive Ability
• Carroll model.