If you're weighing Cattell-Horn-Carroll cognitive battery against Montreal Cognitive Assessment, the short answer is that they serve overlapping but distinct purposes. This page breaks down exactly how each test is built, who it's for, and when to pick one over the other.
Side-by-side comparison
| CHC | MoCA | |
|---|---|---|
| Full name | Cattell-Horn-Carroll cognitive battery | Montreal Cognitive Assessment |
| Year introduced | CHC theory formalized 1990s | 1996 |
| Target audience | All ages depending on subtest | Adults (especially 55+) |
| Duration | 40–90 minutes | 10–15 minutes |
| Format | Varies by implementation (can be online or clinical) | Paper or digital; brief screening test |
| Scoring | Multi-factor profile across broad abilities (Gf, Gc, Gv, Gsm, etc.) | 0–30 points; 26+ considered normal |
| Strengths | Most theoretically grounded framework; produces a rich cognitive profile rather than a single number | Quick, validated screening tool for mild cognitive impairment (MCI) and early dementia |
| Weaknesses | Less well-known to the general public; interpretation requires training | Screening tool, not an IQ test — does not produce an IQ score |
| Best for | Educational assessment, cognitive strength/weakness profiling | Cognitive screening for impairment, not aptitude measurement |
CHC in depth
Cattell-Horn-Carroll cognitive battery — Most theoretically grounded framework; produces a rich cognitive profile rather than a single number. It's typically used for educational assessment, cognitive strength/weakness profiling. Less well-known to the general public; interpretation requires training.
MoCA in depth
Montreal Cognitive Assessment — Quick, validated screening tool for mild cognitive impairment (MCI) and early dementia. It's typically used for cognitive screening for impairment, not aptitude measurement. Screening tool, not an IQ test — does not produce an IQ score.
Which should you take?
Note that the MoCA and MMSE are cognitive screening tools, not IQ tests. They're designed to detect impairment, not measure aptitude. If you want to know your IQ, use a test like WAIS, Stanford-Binet, Raven, or our free IQ test. If you're concerned about cognitive impairment in yourself or a family member, talk to a physician — the MoCA and MMSE are starting points, not diagnoses.
Want to find out your IQ score?
Take a free, comprehensive cognitive assessment modeled on clinical IQ tests.
Take the Free IQ TestTake these tests directly
- CHC cognitive battery — take a CHC-style test.
- MoCA cognitive screening — take a MoCA-style test.
- Free general IQ test — fast online baseline.
Other comparisons
- Raven vs WAIS
- Raven vs Cattell
- CHC vs Wechsler
- Cattell vs Stanford-Binet
- WISC vs Stanford-Binet
- WAIS vs Stanford-Binet
Understand IQ scores in depth
- What IQ 100 means — the population average.
- What IQ 115 means — one standard deviation above.
- What IQ 130 means — the gifted/Mensa threshold.
- What IQ 145 means — highly gifted range.
- What is a good IQ score?
- IQ test types compared
Frequently asked questions
What's the difference between CHC and MoCA?
CHC (Cattell-Horn-Carroll cognitive battery) is best for educational assessment, cognitive strength/weakness profiling, while MoCA (Montreal Cognitive Assessment) is best for cognitive screening for impairment, not aptitude measurement.
Which is more accurate, CHC or MoCA?
Both are well-validated. CHC: Most theoretically grounded framework; produces a rich cognitive profile rather than a single number. MoCA: Quick, validated screening tool for mild cognitive impairment (MCI) and early dementia. Accuracy depends on what you need to measure.
How long does each test take?
CHC takes 40–90 minutes. MoCA takes 10–15 minutes.