Speed & Reflexes
Choice Reaction Time
Simple reaction time asks you to click when anything happens. Choice reaction time asks you to pick the right action among four. One of four colour panels lights up. Click that panel, not the others. Wrong clicks count as misses. The score is your average correct time in milliseconds.
Played 14,516 times · average 420 ms
One of four colour panels lights up. Click that panel as fast as you can. Wrong clicks are misses and do not enter the average.
Pick a length
Short is a quick check. Long is the full run. Your best for each is stored on this device.
What this measures
Choice reaction time measures how fast you can map a visual cue onto the matching motor response when several responses are possible. That extra decision step is why scores sit slower than a simple green-panel click. The same mapping shows up when you pick a lane, a key, or a button under time pressure. Fatigue, distraction, and alcohol stretch this number first. Practice tightens the mapping but does not remove the decision cost. We report the mean of correct trials only so a single miss does not hide a clean run.
Where this shows up in real life
Choosing a lane, a hotkey, or the right button on a control panel is choice reaction, not a simple go signal. A slower day here often tracks fatigue or a crowded screen, useful as an alertness check.
How to improve
- Rest your fingers near all four targets so you are not reaching from one corner.
- Look at the centre of the set, not at one panel. Peripheral pop-out is faster.
- Do not guess. A miss wastes the trial and teaches a sloppy mapping.
- Same device, same lighting. Compare your own days, not a phone versus a desktop.
Frequently asked questions
Why is this slower than the Reaction Time Test?
Simple reaction time is a go signal. Choice reaction time is a go-plus-which signal. The extra decision is real and typically adds 100 to 200 ms in healthy adults.
What is a good choice reaction score?
Around 420 ms is typical on this four-choice layout. Under 370 ms is strong. Under 320 ms is rare without a lot of practice on the same layout.
Does this relate to ADHD?
Variable choice times and extra misses show up in some attention profiles, but a single web score is not a diagnosis. Use it as a practice metric next to the questionnaire screens.