What is the g factor?
What is the g factor? This page is still a work in progress and most sections are incomplete. The following is a summary of the main points of the theoretical, mathematical, and em...
A community-sourced wiki dedicated to offering a comprehensive understanding of the science of mental ability.
Start here for a concise overview of psychometric science.
Quick answers to the most common psychometric queries.
Addressing various IQ misconceptions which have permeated pop culture.
Explore the general intelligence factor and its empirical support.
Essential stats concepts needed to interpret test data accurately.
Milestones in measuring general intelligence across history.
What is the g factor? This page is still a work in progress and most sections are incomplete. The following is a summary of the main points of the theoretical, mathematical, and em...
This section aims to dispel popular myths regarding psychometrics and IQ. This page is still a work in progress and most sections are incomplete. General "IQ tests only measu...
Introduction The 1926 SAT marked the debut of the SAT, influenced by psychologist Carl Brigham, who previously worked on developing aptitude tests for the Army during World War I....
High-Range IQ Tests What Are HRTs High-range IQ tests (HRTs) are tests that claim to measure IQs of over 160 SD 15, and often IQs above 190. Most are untimed, fluid reasoning tests...