GAIvsIQ — Free Online IQ Test with Cognitive Profile Breakdown

What is GAIvsIQ?

GAIvsIQ is a free online IQ test built around one specific psychometric idea: the gap between the General Ability Index (GAI) and the Full Scale IQ (FSIQ). Where a traditional full-scale score blends every subtest — including working memory and processing speed — the GAI focuses on reasoning-heavy subtests, so a person's GAI and FSIQ can diverge meaningfully. The site, operated by "GAIvsIQ Laboratory," frames its test on CHC theory (Cattell-Horn-Carroll), the same framework behind the Wechsler (WAIS/WISC) and Woodcock-Johnson batteries.

The core product is a nine-task browser test of roughly 30 minutes that estimates overall IQ plus a profile across five CHC domains: verbal comprehension, fluid reasoning, visuospatial processing, working memory, and processing speed. Alongside the test, the site offers calculators — GAI, CPI, and Wechsler index calculators — for people who already hold official WISC or WAIS reports and want to compare their GAI against their full-scale score. No company country or founding year is published; contact is hello@gaivsiq.com.

How GAIvsIQ Works

The workflow has three steps. First, start the nine tasks in the browser — no account is needed, the test is smartphone-friendly, and it can be resumed task by task. Answers stay in the local browser. Second, read the free result: an overall IQ estimate, a profile name summarizing the shape of the results, the GAI, and the gap between GAI and FSIQ. Third, optionally purchase the detailed written report.

The site also applies basic validity screening: very fast or patterned responses are flagged as "thin" sittings, so rushed or random clicking will not produce a meaningful profile.

Main Features

• Nine-task adaptive-style test — about 30 minutes of browser-based tasks covering verbal, reasoning, visual-spatial, memory, and speed domains.
• Five-domain CHC profile — scores across verbal comprehension, fluid reasoning, visuospatial processing, working memory, and processing speed rather than a single blunt number.
• GAI versus FSIQ gap — the site's signature output, estimating where general-ability reasoning stands relative to the full-scale blend.
• WISC/WAIS calculators — GAI, CPI, and Wechsler index calculators for users who already have official reports.
• Profile name — a shareable, plain-language label summarizing the cognitive profile.
• Optional written report — a $19.99 one-time purchase with pattern interpretation and full score breakdowns, emailed for later access.

Pricing

The test itself is free: all nine tasks, the overall IQ estimate, the shareable profile name, and the GAI/gap result require no payment and no account. The paid tier is a single item — the detailed written report at $19.99 one-time — which adds written interpretation of the score pattern, scores for all five domains and all nine tasks, and GAI and CPI values, delivered by email so it can be revisited later. There are no subscriptions or credits.

Common Use Cases

• Curiosity about cognitive strengths — seeing which of the five domains runs strongest rather than relying on one number.
• Interpreting an existing WISC/WAIS report — using the calculators to compute GAI and compare it with the full-scale score.
• Giftedness-context exploration — the FAQ notes many programs use a 130 cutoff (about the 98th percentile), and the GAI framing is relevant where working-memory or speed scores pull a full-scale score down.
• Private self-assessment — no account and local-only answers suit users who want to keep results off third-party servers.

Limitations

The site is unusually explicit about what the test is not: it is "not a WAIS, WISC, or diagnosis," it "is not age-normed and not a Pearson test," and it cannot diagnose ADHD, learning disabilities, or giftedness. It deliberately avoids inventing reliability coefficients or standard errors of measurement, so the scores should be read as a construct-aligned estimate rather than a clinical measurement. Very fast or patterned responses are flagged as thin sittings and invalidate the profile. The results are positioned for personal understanding only. Finally, no information is published about the operator beyond the "GAIvsIQ Laboratory" name and a contact email, so professional or institutional users have little accountability context.

Summary

GAIvsIQ is a credibly scoped self-serve cognitive assessment: a free, account-free nine-task test grounded in CHC theory that reports a five-domain profile and its signature GAI-versus-FSIQ gap, with calculators for people who already hold Wechsler reports and a reasonably priced $19.99 written report for those who want interpretation. Its honesty about not being a normed clinical instrument is a strength, not a weakness — but it also defines the ceiling. Treat the outputs as an educational estimate of cognitive strengths, not a diagnostic or admissions-grade IQ score.