Test
Cognitive Assessment

Understand your mind

Free screening for dyscalculia, ADHD indicators, and a full cognitive profile. 29 research-backed tests, all running in your browser.

29Tests
7Domains
~120Minutes
FreeScreening

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∑ Screening
Dyscalculia

A structured screening for dyscalculia, the specific learning difference that affects how your brain processes numbers. Covers number sense, arithmetic fluency, and the cognitive foundations that support math.

Magnitude Comparison Number Line Arithmetic Dot Comparison Subitizing Fact Retrieval Counting Fluency Place-Value Number Dictation Digit Span DSST Stroop Trail Making Matrix Reasoning Reaction Time
15 tests ⏱ ~47 min 📊 Number sense + transcoding + cognitive context
◉ Screening
ADHD Indicators

Measures the core attention dimensions that differ in ADHD: sustained focus, impulse control, response consistency, and processing speed. Not a diagnosis, but a data-driven starting point for understanding how your attention works.

Flanker Go / No-Go Stop-Signal CPT Digit Span Stroop Trail Making DSST Reaction Time
9 tests ⏱ ~25 min 📊 Attention + executive function
Full Cognitive Profile

All 26 tests across every domain. Processing speed, working memory, executive function, fluid reasoning, verbal comprehension, dyscalculia, and ADHD indicators. Get an AI-generated report analyzing your complete results.

26 tests · ~120 min
Explore by domain Or pick individual tests
2 tests · ~8 min

Processing Speed

How quickly you process and respond to simple information. Foundational; it affects performance across every other domain.

123? → △
4 tests · ~23 min

Working Memory

Holding and manipulating information in your mind. The capacity you rely on for reasoning, learning, and following complex instructions.

7492repeat backwards →increasing span
4 tests · ~23 min

Executive Function

Planning, cognitive flexibility, and inhibitory control. These processes govern what you focus on, when you switch tasks, and when you stop.

REDGREENBLUEsay the ink color
2 tests · ~17 min

Fluid Reasoning

Solving novel problems and detecting patterns without relying on prior knowledge. The closest measurable approximation of general reasoning ability.

?find themissing piece
Aa
4 tests · ~20 min

Verbal Comprehension

Vocabulary depth, word relationships, and verbal reasoning. Crystallized knowledge: what you have learned and how flexibly you can apply it.

hot:cold=up:?analogy · vocabulary · fluency
6 tests · ~20 min

Number Sense / Dyscalculia

Core numerical intuition and quantity processing. This battery screens for dyscalculia, a specific learning difference affecting roughly 5 to 7% of the population.

vswhich hasmore?
4 tests · ~26 min

Attention / ADHD Screening

Sustained focus, impulse control, and response consistency. These tests measure the core attention dimensions that differ in ADHD: not whether you can focus, but how your attention system regulates itself.

identify thecenter arrow
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