How is the Stanford-Binet structured?

It measures five cognitive factors: fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.

Who takes the Stanford-Binet?

It's used for ages 2 to 85, from preschoolers to adults, in educational, clinical, and research settings.

Assessment typically takes 45-90 minutes depending on the examinee's age and the number of subtests administered.

Modern versions show test-retest reliability of 0.90-0.95 and strong correlations with academic achievement and other validated IQ measures.

Peter Kolomiets

|March 18, 2026|Updated Apr 13, 2026|7 min read

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Roid, G. H.. Roid, G. H. (2003). Stanford-Binet Intelligence Scales (5th ed.). Technical Manual
Terman, L. M.. Terman, L. M. (1916). The Measurement of Intelligence
Jensen, A. R.. Jensen, A. R. (1998). The g Factor: The Science of Mental Ability

Put what you've learned into practice with these free assessments:

The WAIS is the gold standard for adult IQ assessment, measuring verbal comprehension, perceptual reasoning, working memory, and processing speed.

IQ correlates moderately-to-strongly with school grades and standardized test scores, explaining 25-50% of academic performance variance.