Fun & Decisions

Reaction Time

Start, wait 2–5 seconds, then tap when the target changes. Early taps invalidate the attempt. Browser, screen and input latency affect the result; this is practice, not a medical or laboratory test.

Input, winners and scores stay in page memory. Reload clears them; sharing excludes them.

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Method and common questions

Method and scope

Start, wait 2–5 seconds, then tap when the target changes. Early taps invalidate the attempt. Browser, screen and input latency affect the result; this is practice, not a medical or laboratory test.

Limits

Input, winners and scores stay in page memory. Reload clears them; sharing excludes them.

No. Review the method and limits. Device timing, dictionary or random sampling is not external certification.

Method

Start, wait 2–5 seconds, then tap when the target changes. Early taps invalidate the attempt. Browser, screen and input latency affect the result; this is practice, not a medical or laboratory test.

Last checked: 2026-10-26

FAQ

Is this a certified assessment?
No. Review the method and limits. Device timing, dictionary or random sampling is not external certification.
Is text sent or saved?
Input, winners and scores stay in page memory. Reload clears them; sharing excludes them.
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