What Is a Go/No-Go Test? Inhibition and Impulse Control

What is a Go/No-Go test?

A Go/No-Go test asks you to respond to one class of signals and withhold the response for another. “Go” trials measure a prepared response, while “No-Go” trials create a need to stop or inhibit that response. The task is often used to discuss response inhibition and sustained attention.

Two common errors matter: a commission error happens when you respond on a No-Go trial, and an omission error happens when you fail to respond on a Go trial. Response time and accuracy should be considered together. Changing the ratio of Go to No-Go trials, the signal duration, or the response device can change the difficulty.

How to interpret practice results

An online Go/No-Go test is a narrow browser exercise. Fatigue, distractions, anticipation, unfamiliar instructions, and practice can all change the score. Use the same task and setup for several sessions, record both error types, and compare your own range. Avoid turning a result into a claim about self-control, ADHD, or another medical condition.

For more context, read Browser Timing, Display Latency, and Fair Comparisons and the HumanSpec benchmarks. They explain why repeatable conditions are more useful than a single impressive or disappointing round.

Go/No-Go results are educational reference points, not medical, psychological, IQ, or employment assessments.