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Simple Reaction Time
Measure your reaction speed across 7 quick trials. Click or press Space when
the screen turns teal.
Your Results Simple
Trials0/7
Mean RT–
Variability (SD)–
Z vs. norms–
Percentile–
Your percentile: –
⚠️ This tool is for educational use and not a medical diagnosis. Results vary with
sleep, caffeine, and device lag.