Reaction Speed Test
Run a longer 10-round challenge and see whether your speed stays repeatable from the first signal to the last.
Attempt
0 / 10
Current
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Median
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Best
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Start the challenge, wait until the panel turns green, then activate it. Complete ten valid rounds.
Ten-round score card
Your reaction speed result
Median—
Average—
Best—
Worst—
Spread—
Personal best—
Research-based feedback
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Visual benchmark
Where your ten-round median sits
This curve compares the median of your ten valid rounds with simple visual reaction-time references. The gap between your fastest and slowest rounds shows how consistent the session was.
How your result compares+
ESTIMATED INDEX · NOT A BIOLOGICAL AGE
WEB SAMPLE · NOT A CLINICAL COMPARISON
FUN LANDMARK · NOT AN EQUIVALENCE
PLAYFUL MATCH · NOT A SCOUTING GRADE
The percentile and Reaction Age use a calibrated laboratory distribution, while the web baseline comes from a separate large online sample. For this ten-round sprint, read those references together with the gap between your fastest and slowest rounds. A fast median with large trial-to-trial variation is less consistent than a stable session. See the percentile and age-group research tables.
Reference notes: Sprint references: the laboratory study reported a 231 ms simple visual mean; the online sample reported a mean near 318 ms and a 301 ms median. The animal cards are playful landmarks from different tasks and species, not direct equivalents to ten browser clicks. Web sample study · Human study · Mole review · Fly study
Consistency describes the range of this session only. It is not a ranking or a comparison with professional players; reaction-time percentiles are separate modeled reference estimates.
Recent 10-round results
Completed sessions are saved automatically on this device.
Why use a 10-round reaction speed test?
A longer session shows more of your trial-to-trial variation than a single fastest click. The headline score is the median of ten valid rounds. We also show the average, best, worst, and spread so one unusually slow round is visible without dominating the interpretation.
This page is designed as a sprint challenge, while the homepage uses a shorter five-round baseline. Use the same display, browser, and input device when comparing sessions.
Up to 20 completed sprint sessions are stored only in this browser so you can compare recent medians, best times, spread, and consistency. You can clear that history from the result card.
How to get a comparable result
Keep hardware fixed
A different monitor, mouse, touchscreen, or Bluetooth connection can move the measured time.
Finish all ten rounds
Do not discard slow trials simply because they make the result look worse.
Compare medians
The median is less sensitive to one unusually high or low value than the average.