Go/No-Go Test: Speed & Self-Control
Click on green, hold back on red. Tests speed and self-control.
MEASURES
Impulse ctrl
INPUT
Click / withhold
TIME
~50 sec
How the test works
Reacting fast is easy — stopping is hard
Prime yourself to click on green and your finger starts wanting to fire at anything. What the no-go trials measure is response inhibition, the brain's brake. A click on red is a false alarm, and the real challenge is cutting those down without letting your go reactions slow.
Components of clinical continuous-performance assessments do resemble tasks like this, but what you have here is a quick benchmark for curiosity and practice, not a diagnostic or screening tool for any condition.
How your score grades
Sharp Shooter
< 380 ms · ≤ 15% false alarms
Fast go reactions and very few false alarms — the ideal balance.
Trigger Happy
< 380 ms · > 15% false alarms
Quick to click but caught by the reds. Speed at the cost of control.
Steady Hand
≥ 380 ms · ≤ 15% false alarms
Disciplined and accurate, but leaving reaction speed on the table.
Distracted
≥ 380 ms · > 15% false alarms
Slower and jumpy — usually a sign to rest and refocus.
Questions
What does the Go/No-Go test measure?
Two things at once: your speed reacting to a go signal, and your ability to inhibit a response to a no-go signal. That second part, response inhibition, is what sets it apart from a plain reaction test.
What is a false alarm?
Clicking when a red (no-go) stimulus appears. Your impulse to respond beat the brake. What you want is a low false-alarm rate alongside fast go times.
Can this diagnose ADHD?
No. Inhibition tasks do resemble parts of clinical assessments, yet this remains a quick, uncontrolled web benchmark meant for curiosity and practice only. Screening for or diagnosing any condition is beyond it. Speak to a professional for that.
Why are my go reactions slower than on the classic test?
You have to check whether each stimulus is a go or a no-go before acting. Time goes into that extra decision, for the same reason choice reactions trail simple ones.