9 tasks · about 30 minutes
Beyond overall IQ, the test measures 5 cognitive abilities so you can understand your strengths and weaknesses.
You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
Free
Detailed report
Free
CHC theory provides the theoretical framework behind intelligence tests such as WAIS and WJ. BrainTypeIQ is an online IQ test designed around that same framework.
Built on CHC theory
BrainTypeIQ is based on the same theoretical framework (CHC theory) as intelligence tests such as WAIS and WJ.
Understand the CHC model →WAIS-5-generation structure
WAIS-5 was released in the United States in 2024, while its introduction in Japan is still several years away. BrainTypeIQ adopts the latest five-domain structure, separating visuospatial processing from fluid reasoning, which were combined into one index in WAIS-IV.
About WAIS-IV and WAIS-5 →9 tasks
Based on representative tasks used in WAIS and WJ, BrainTypeIQ measures five domains through nine tasks adapted for online administration.
Design of the 9 tasks →You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
BrainTypeIQ measures 5 cognitive domains through 9 tasks.
Verbal comprehension, fluid reasoning, visuospatial processing, working memory, and processing speed.
Beyond overall IQ, it shows where your strengths lie and which areas tend to place a greater load on you, as well as the pattern of differences across your cognitive profile.
Design of the 9 tasks →The full test takes about 30 minutes across 9 tasks.
Each task takes only a few minutes. You do not need to finish everything in one sitting: you can move forward one task at a time.
Normed with Japanese-version data
Raw-score conversion and age differences were validated using first-completion data from 841 participants in the Japanese version. The model-based reliability of overall IQ was .929, with an SEM of about 4.0 points.
See the reliability analysis →※ This test is intended for personal understanding and cannot be used for medical diagnosis.
You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
Yes. BrainTypeIQ is designed to be taken on a smartphone.
The test runs directly in the browser. You do not need to install an app.
In an analysis of 841 participants in the Japanese version, the model-based reliability of overall IQ was .929, and the standard error of measurement (SEM) was about 4.0 points.
See the reliability analysis →BrainTypeIQ cannot be used for medical diagnosis.
Diagnosis must be made by a specialist at a medical institution.
However, understanding your cognitive strengths and weaknesses can provide useful information when you consult a professional.
What the test can and cannot do →You can take all 9 tasks and view your overall IQ, brain type report, domain scores, task scores, and detailed indicators such as GAI/CPI for free.
Overall IQ (FSIQ)
109±3.9
Words · reflection
A cognitive profile with strong verbal comprehension