The Stanford-Binet Intelligence Scales is one of the oldest and most respected IQ tests in the world. This comprehensive guide covers the complete history of the Stanford-Binet, the key differences between SB-5 and other major IQ tests (WISC, WAIS, Mensa, and Full Evaluations), and what you need to know about testing in Denver.
Last Updated: July 2026
From Binet-Simon (1905) to SB-5 (2003) – the evolution of intelligence testing.
Detailed comparison of Stanford-Binet vs WISC, WAIS, Mensa, and Full Evaluations.
How many people take the Stanford-Binet in Denver and what the data tells us.
Complete breakdown of subtests and scores for every Stanford-Binet version.
Understanding the advantages of the Stanford-Binet and who it's best for.
Book your Stanford-Binet assessment with a licensed psychologist in Denver today.
The story of the Stanford-Binet begins in France with Alfred Binet and Théodore Simon. In 1905, the French Ministry of Education commissioned Binet to develop a test to identify children who would need special assistance in school. The result was the Binet-Simon Scale, which measured memory, attention, comprehension, and judgment.
Lewis Terman of Stanford University adapted the Binet-Simon Scale for American use in 1916. This version introduced the Intelligence Quotient (IQ) concept, which was calculated as (Mental Age ÷ Chronological Age) × 100. Terman's version became the foundation for modern IQ testing.
This revision expanded the test to two forms (L and M) and extended the age range to cover ages 2 to adult. It was the first major revision of the SB.
This version incorporated the best items from Forms L and M into a single Form L-M. It was the first to introduce deviation IQ scores, which are now standard in all modern IQ tests.
A minor revision with updated norms based on the 1960s population.
A major revision that introduced a multi-factor structure. It assessed four cognitive areas: Verbal Reasoning, Abstract/Visual Reasoning, Quantitative Reasoning, and Short-Term Memory. It also introduced the concept of Standard Age Score (SAS).
The current version, SB-5, represents the most comprehensive revision to date. It features:
| Feature | Stanford-Binet (SB-5) | WISC-V | WAIS-IV | Mensa Test | Full Evaluation |
|---|---|---|---|---|---|
| Age Range | 2–85+ years | 6–16 years | 16–90 years | 16+ years | Varies |
| Primary Use | Gifted identification, clinical assessment, all ages | Children's IQ, school placement, gifted programs | Adult IQ, career guidance, neuropsychology | High-IQ society admission | Comprehensive cognitive & psychological assessment |
| Factors/Indices | 5 factors (Fluid Reasoning, Knowledge, Quantitative, Visual-Spatial, Working Memory) | 5 indices (VCI, VSI, FRI, WMI, PSI) | 4 indices (VCI, PRI, WMI, PSI) | Varies by test | Multiple cognitive, behavioral, and emotional domains |
| Subtests | 10 (5 verbal, 5 nonverbal) | 10 primary + 5 secondary + 5 tertiary | 10 core + 5 supplemental | Varies | Multiple tests |
| Administration Time | 45-75 minutes | 65-80 minutes | 60-90 minutes | 60-90 minutes | 2-6 hours |
| Best For | Highly gifted individuals, all ages, comprehensive assessment | Children, school placement, ADHD/LD evaluation | Adults, career guidance, Mensa, neuropsychology | Adults seeking Mensa membership | Complex cases, disability diagnosis, legal documentation |
The SB-5 may be selected for gifted questions, broad-age testing, intellectual-disability evaluation, developmental assessment, or cases in which its verbal and nonverbal structure fits the referral question. The evaluator should choose the instrument based on age, language, disability, purpose, and receiving organization's requirements.
No authoritative public database reports how many Stanford-Binet assessments are administered in Denver. Local totals should not be inferred from population estimates or national testing patterns.
Denver psychologists may also use the WISC-V for school-age children, WAIS instruments for adults, CogAT in DPS Gifted and Talented screening, and broader psychoeducational or neuropsychological batteries. Confirm that the selected test is accepted for the intended school, Mensa, disability, or clinical purpose.
The Stanford-Binet is the oldest continuously used intelligence test, with origins in 1905 France. Key milestones:
The Stanford-Binet was the test used by the famous "Termite" study that followed gifted children throughout their lives.
All three are excellent IQ tests, but they have different strengths:
Choose Stanford-Binet if you need an assessment that works across all ages and is less affected by processing speed or motor issues.
Yes, Stanford-Binet is often preferred for individuals with ADHD or processing speed issues because it is less influenced by speed compared to WISC and WAIS. The SB-5's emphasis on fluid reasoning and knowledge rather than speed makes it more accessible for individuals with attention difficulties. However, like all IQ tests, SB-5 cannot diagnose ADHD on its own – it provides cognitive profile information that helps clinicians understand how ADHD might affect a person's performance.
American Mensa's published qualifying-score list includes Stanford-Binet 5 with a qualifying IQ of 130. A complete report must meet current documentation and administration requirements; verify the rules before scheduling.
SB-5 takes approximately 45-75 minutes to administer, depending on the individual's age and performance.
Yes! This is one of SB-5's biggest advantages. It covers ages 2-85+ with a single test battery, making it ideal for families who want to compare results across generations.
Fees vary by provider, assessment scope, report detail, and turnaround time. Insurance coverage depends on medical necessity; ask the evaluator directly about payment options and obtain a written estimate.
Remote Stanford-Binet administration should not be assumed. The psychologist must determine whether the format is permitted, valid for the referral question, consistent with publisher guidance, and accepted by the receiving organization.
A Full Evaluation includes multiple tests (IQ, achievement, personality, behavioral, emotional) and typically takes 2-6 hours. It provides a comprehensive picture of cognitive, academic, emotional, and behavioral functioning. A single IQ test like Stanford-Binet focuses only on cognitive abilities and takes 45-75 minutes. Full Evaluations are best for complex cases, disability diagnosis, or legal documentation.