Frequently Asked Questions

BrainTypeIQ measures 5 cognitive domains through 9 tasks.

• Verbal comprehension (Gc) - knowledge and reasoning through language
• Fluid reasoning (Gf) - solving new problems logically
• Visuospatial processing (Gv) - grasping shapes and space
• Working memory (Gwm) - holding and manipulating information for a short time
• Processing speed (Gs) - processing simple information quickly and accurately

In addition to overall IQ (FSIQ), the results include an analysis of differences across domains, a GAI/CPI analysis, and a brain type report.

The full test takes about 30 minutes.

Each task takes only a few minutes. You do not need to finish everything in one sitting: you can move forward task by task.

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, taking the test on a smartphone is recommended.

The test also works on desktop, but some tasks where speed matters can be more affected by how you operate the device. For a more stable result, a smartphone is usually better.

You do not need to finish the whole test in one sitting.

You can move forward task by task and resume most tasks later.

Some very short timed tasks may be treated as completed if they are interrupted after starting.

You can take it again at any time.

If you still remember questions you recently saw, the learning effect may raise the score above your usual level.

For a more stable result, it is better to wait several weeks before retaking it.

BrainTypeIQ cannot be used for medical diagnosis.

Developmental conditions and giftedness must be diagnosed through a comprehensive assessment by a specialist at a medical institution.

However, understanding your cognitive strengths and weaknesses can provide useful information when you consult a professional.

IQ indicates a relative position among people who took the same test format.

The average is 100, and about 68% of people score between 85 and 115.

It is not a simple ranking of personal worth, but a number that can help you understand cognitive tendencies.

BrainTypeIQ measures the following 5 cognitive domains.

• Verbal comprehension (Gc) - knowledge and reasoning through language
• Fluid reasoning (Gf) - solving new problems logically
• Visuospatial processing (Gv) - perceiving and manipulating shapes and spaces
• Working memory (Gwm) - temporarily holding and processing information
• Processing speed (Gs) - speed and accuracy on simple tasks

The combination of strengths and more effortful areas varies from person to person. BrainTypeIQ reads that pattern as a cognitive profile.

GAI and CPI divide IQ into two axes.

• GAI (General Ability Index) - a combination of thinking, reasoning, and verbal ability (Gc + Gf + Gv)
• CPI (Cognitive Proficiency Index) - the speed and efficiency of information processing (Gwm + Gs)

For example, someone who is good at careful thought but struggles in speed-based situations will have GAI > CPI. The relationship between these axes reveals features of your cognitive style.

BrainTypeIQ is based on the CHC model (Cattell-Horn-Carroll).

This framework is widely used in contemporary intelligence research. Intelligence tests such as WAIS and WJ are also based on the same theory.

BrainTypeIQ measures 5 cognitive domains through 9 tasks within this framework.

Scores are calculated from over 1,000 collected responses, after excluding invalid or duplicate responses, using task-level statistical analysis that takes age into account.

They are designed to show the result as a relative position among people of a similar age.

The English version provides results as reference information for personal understanding.

Scores are calculated from over 1,000 collected responses, after excluding invalid or duplicate responses, using statistical analysis that takes age into account.

They should not be read as standardized results for all English-speaking countries or all English-language backgrounds.

It is BrainTypeIQ's own classification system, combining GAI/CPI dominance with verbal/nonverbal dominance.

A combination of 9 types × 3 subtypes expresses your cognitive characteristics intuitively. Use it as a starting point for understanding, “This is how I tend to use my brain.”

WAIS is a clinical test administered face to face by a psychologist at a medical institution and may also be used in medical diagnosis. BrainTypeIQ is an online test intended for personal understanding.

The two share the theoretical framework of CHC theory and the five cognitive domains they measure, but their purposes differ.

The results become difficult to interpret correctly.

BrainTypeIQ does not measure whether you already know the correct answer, but how and how quickly you process problems. Take the test without search, notes, or outside help.

Response patterns and reaction times are recorded, and statistically unusual data may reduce score reliability.

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 stores response accuracy, response times, session information, and your login email address. This information is used to calculate scores, restore sessions, and improve test quality.