50M+ scored sessions

Cognitive Test Suite

12 science-backed tests measuring reaction speed, working memory, attention, and executive function. No equipment, no sign-up required. Results in minutes.

50M+
Scores recorded
12
Validated tests
<5 min
Most tests done
Free
No sign-up needed
⚡
Speed

Reaction Time

Click when the screen turns green. Tests simple visual reaction speed — the foundation of all fast cognitive responses.

~1 min 8.4M scores Avg: 284ms
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🔢
Memory

Sequence Memory

Watch a growing pattern of squares light up, then repeat it in order. Directly parallels the clinical Corsi Block test.

~3 min 6.1M scores Avg: 8 levels
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🎯
Speed

Aim Trainer

Hit 30 targets as fast as possible. Measures visuomotor speed and spatial precision following Fitts' Law.

~1 min 3.5M scores Avg: 380ms
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🔢
Memory

Number Memory

A number flashes briefly. Enter it exactly. Each round adds a digit — tests verbal working memory span (Miller's Magic Number 7).

~2 min 5.2M scores Avg: 7 digits
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Memory

Verbal Memory

Seen or new? Words appear one at a time. Track which you've already seen. Tests episodic recognition memory using a continuous recognition paradigm.

~3 min 3.8M scores Avg: 50 words
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Memory

Chimp Test

Numbers appear then vanish. Click them in order. Based on research showing chimps outperform humans on this specific visuospatial task.

~2 min 4.7M scores Avg: 5 numbers
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🟪
Memory

Visual Memory

Squares flash on a growing grid. Memorize and click them before time runs out. 3 lives — tests pure spatial pattern recall.

~3 min 4.2M scores Avg: 8 levels
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⌨️
Speed

Typing Speed

Type passages at three difficulty levels. Character-level feedback, 30+ unique texts. Score is net WPM with accuracy correction.

30–120s 7.8M scores Avg: 52 WPM
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🔷
Speed

Pattern Recognition

A grid pattern flashes briefly. Identify which one you saw from multiple choices. Tests visual short-term memory and perceptual speed.

~2 min 4.1M scores Avg: 1200ms
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⚡
Speed

Processing Speed

A symbol appears — click the match from 5 options. 10 rounds, 3 difficulty levels. Based on the Symbol Digit Modalities Test (SDMT).

~1 min 2.9M scores Avg: 520ms
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🔍
Attention

Attention & Focus

Press Space when you see X. Don't press for any other letter. Based on the Continuous Performance Test (CPT) used in ADHD evaluation.

~1 min 1.7M scores Avg: 88% hits
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🧠
Cognitive

MoCA Cognitive Test

The Montreal Cognitive Assessment — the test Trump scored 30/30 on. 8 sections covering memory, attention, language, and orientation.

~8 min 1.2M scores Avg: 25/30
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Global Score Benchmarks

Aggregated from 50M+ test sessions. Use these to see exactly where you stand. Data trimmed to exclude bot submissions and extreme hardware outliers. See methodology for details.

Test Global Avg Top 25% Top 10% Top 1%
Reaction Time 284ms <255ms <235ms <190ms
Typing Speed 52 WPM 65+ WPM 75+ WPM 95+ WPM
Sequence Memory 8.3 lvls 10+ 12+ 15+
Number Memory 7 digits 8+ 9+ 12+
Chimp Test 5 nums 7+ 9+ 12+
Visual Memory 8 levels 10+ 12+ 15+
Pattern Recog. 1200ms <900ms <700ms <450ms
Verbal Memory 50 words 65+ 80+ 110+
Aim Trainer 380ms <320ms <280ms <220ms
Processing Speed 520ms <400ms <320ms <220ms
Attention & Focus 88% 94%+ 97%+ 100%
MoCA Test 25/30 27+ 29+ 30/30

Lower is better for time-based tests (Reaction Time, Aim Trainer, Processing Speed, Pattern Recognition). Higher is better for all others.

Test Popularity — Scores Taken

Which tests people take most. Reaction Time leads by a wide margin — it's the fastest test to complete and the most shareable result.

8.4M 7.8M 6.1M 5.2M 4.7M 4.2M 4.1M 3.8M 3.5M 2.9M 1.7M 1.2M Reaction Time Typing Speed Sequence Mem Number Memory Chimp Test Visual Memory Pattern Recog. Verbal Memory Aim Trainer Processing Spd Attention MoCA Test

What Each Test Measures

Each test targets a distinct cognitive domain grounded in peer-reviewed neuropsychology. Read the science page for full methodology and clinical paradigm references.

Speed & Reaction

How fast your nervous system detects a stimulus, processes it, and produces a motor response. Peaks around age 24 and declines ~2ms/year after 30. Primarily measures peripheral and central processing velocity.

Reaction Time — simple RT paradigm (Donders, 1868) Aim Trainer — visuomotor integration (Fitts' Law) Processing Speed — Symbol Digit Modalities Test Typing Speed — procedural motor speed

Working Memory

The brain's capacity to hold and manipulate information over seconds. Baddeley's model splits this into the phonological loop (verbal), visuospatial sketchpad (spatial), and episodic buffer (integrated). Working memory span predicts academic and professional performance.

Number Memory — phonological loop (Wechsler digit span) Sequence Memory — visuospatial sketchpad (Corsi block) Visual Memory — spatial pattern recognition (Phillips, 1974) Chimp Test — delayed match-to-position (Matsuzawa, 2007)

Attention & Vigilance

Sustained attention — the ability to stay focused on a task over time while suppressing impulsive responses. Mediated by the right prefrontal cortex and locus coeruleus-norepinephrine system. Assessed clinically for ADHD and traumatic brain injury.

Attention & Focus — Continuous Performance Test (CPT-X) Verbal Memory — recognition memory (Shepard, 1967) Pattern Recognition — change detection (Rensink, 2000)

Executive Function

Higher-order cognitive control — planning, task-switching, inhibition, and reasoning. Orchestrated by the prefrontal cortex. Most sensitive to aging among all cognitive domains. The MoCA was specifically designed to screen for executive function deficits.

MoCA Test — Montreal Cognitive Assessment (Nasreddine, 1996) Processing Speed — cognitive throughput (SDMT, Smith 1968)

How Scores Change With Age

All cognitive scores peak in the early-to-mid twenties and decline with age, but at very different rates. Speed tests decline fastest; vocabulary and crystallized knowledge hold up longest. Data from 50M+ sessions with self-reported age.

Reaction Time by Age (ms — lower is better)

Mean reaction time across age brackets. Decline begins around age 25 and accelerates after 60.

400 350 300 250 200 Peak 238ms 16–19 20–24 25–29 30–39 40–49 50–59 60–69 70+
Age Group Reaction Time
16–19 245ms
20–29 (peak) 240ms
30–39 255ms
40–49 277ms
50–59 309ms
60–69 355ms
70+ 401ms

Age data is self-reported and therefore noisy. Younger cohorts are over-represented. Full analysis at science page → Age Effects.

All-Time Site Records

The highest verified scores ever recorded on each test. Can you beat them? Full rankings available on the leaderboard.

Test Record Holder
Reaction Time 143ms
K
k_sub150
Typing Speed 187 WPM
K
keys_blaze
Sequence Memory Level 26
S
seq_beast
Number Memory 16 digits
N
numqueen
Verbal Memory 214 words
W
wordbank_k
Visual Memory Level 18
V
vismem_pro
Chimp Test 14 nums
C
chimp_god
Aim Trainer 188ms
A
apex_ace
Processing Speed Level 5
P
proc_master
Attention & Focus 100%
F
focus_zen
MoCA Test 30/30
C
cogn_peak

Which Test Should I Take?

Depends on what you want to measure or improve. Every test provides a different window into your cognitive profile.

🎮

I'm a gamer

Reaction time and aim accuracy are core to competitive gaming. Start with Reaction Time to establish your baseline, then Aim Trainer to test visuomotor precision.

Reaction Time Aim Trainer Processing Speed
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I want to test focus

Sustained attention and inhibitory control are critical for deep work. The Attention test will expose how well you suppress distracting stimuli over time.

Attention & Focus Verbal Memory Processing Speed
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I'm a student

Academic performance correlates with working memory span and processing speed. Number Memory and Sequence Memory measure your raw working memory capacity.

Number Memory Sequence Memory Verbal Memory
✍️

I write or type a lot

Writers and developers benefit most from typing speed tests. Our test measures net WPM at three difficulty levels — from common words to technical vocabulary.

Typing Speed Verbal Memory Attention & Focus
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I'm concerned about aging

The MoCA was designed specifically to detect age-related cognitive decline. Reaction Time is also highly sensitive to age — a 2ms/year decline starts around 25.

MoCA Test Reaction Time Number Memory
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I want a full profile

Take all 12 tests over two sessions for a complete cognitive profile. The Science page explains what each domain means and how the tests interrelate.

All Tests Science Page Leaderboard

How Tests Correlate

People who score well on one test tend to score well on related tests — but not all tests share the same cognitive substrate. The table below shows empirical correlation strength between test pairs (r = Pearson coefficient from 50M+ sessions).

Test Pair Correlation (r) Explanation
Reaction Time ↔ Aim Trainer 0.68 strong Both load fast motor execution — shared psychomotor speed factor.
Number Memory ↔ Sequence Memory 0.61 strong Both tap working memory span, but different subsystems (verbal vs. spatial).
Reaction Time ↔ Processing Speed 0.54 moderate Overlap in cognitive speed, but SDMT also requires visual search.
Verbal Memory ↔ Number Memory 0.48 moderate Both test short-term storage, but encode different stimulus types.
Typing Speed ↔ Processing Speed 0.43 moderate Both benefit from fast, accurate motor execution.
Sequence Memory ↔ Visual Memory 0.52 moderate Both load the visuospatial sketchpad — different task demands.
Attention ↔ Processing Speed 0.39 moderate Sustained attention supports fast and accurate matching.
Reaction Time ↔ Number Memory 0.21 weak Speed and verbal WM are largely independent cognitive factors.
Typing Speed ↔ Reaction Time 0.18 weak Typing is procedural/motor; simple RT is perceptual — different neural pathways.
Chimp Test ↔ Verbal Memory 0.14 weak Spatial STM and verbal episodic memory recruit distinct brain networks.

Correlations are from matched user sessions where both tests were completed within 24 hours. Directionality adjusted so positive r = both better together.

Frequently Asked Questions

Are these tests medically validated?
They are based on validated neuropsychological paradigms — each test has a named clinical source (listed on the science page). However, they are educational tools, not clinical diagnostics. They should not be used to diagnose any cognitive disorder or replace professional neuropsychological assessment.
How often should I take these tests?
Most tests show meaningful improvement with practice during the first 3–5 sessions, then plateau as you reach your stable baseline. For tracking genuine cognitive change (e.g., effects of exercise, sleep, or training), weekly sessions over 4+ weeks provide a reliable trend. Do not take the same test multiple times in one sitting — fatigue and practice effects will skew results.
Can I actually improve my scores?
Yes — with the right approach per test. Reaction Time improves most with consistent practice and reduced anticipation. Number Memory improves with chunking strategies. Typing Speed improves linearly with deliberate practice. Memory tests are harder to improve beyond your biological working memory ceiling, though strategies help significantly.
What is a good score?
It depends on the test — use the benchmark table above. As a rule of thumb: scoring in the top 25% on any test is solid, top 10% is excellent, and top 1% places you among the best who have ever taken it. Most users are genuinely surprised to find they're above average on several tests.
Why do my scores vary between sessions?
Single-session performance has ±15–30% variance due to fatigue, caffeine, time of day, and device conditions. The 20–29 age bracket shows the lowest variance; older adults show higher session-to-session variability. For the most stable score, take tests mid-morning after adequate sleep.
Do I need to sign up?
No sign-up is required to take any test. Results are temporarily stored in your browser's localStorage. Creating a free account lets you save scores permanently, track improvement over time, and see your position on the global leaderboard.

Track your cognitive baseline

Create a free account to save every result, chart your improvement over weeks, and see how you compare to your exact age group on the global leaderboard.

Create Free Account Read the Science