Cognitive testing
About the Stroop Go/No-Go Test
Task design, scoring, and privacy.
What the task does
The task presents colour words in matching or mismatching ink. One-button mode uses a fixed Spacebar or tap/click response. Multi-button mode adds ink-colour selection.
Results summarize accuracy, errors, and reaction time for one session.
Task settings
- Practice
- 12 trials with feedback
- Main test
- Nine length choices from about 1 to 15 minutes; 100 trials by default
- One-button mode
- Respond to incongruent stimuli and every YELLOW word using Spacebar or the on-screen response button
- Multi-button mode
- Match the ink colour; withhold when the word is YELLOW
- One-button speed
- Slow 1200 ms · Medium 800 ms (default) · Fast 600 ms
- Multi-button speed
- Slow 1500 ms · Medium 1000 ms (default) · Fast 750 ms
- Fixation
- 400 ms
- Interval
- 400–800 ms
- Default colour keys
- Red R · Green G · Blue B · Yellow Y
Trial outcomes
| Outcome | Definition |
|---|---|
| Correct response | A response occurs when the selected mode requires one. |
| Correct withhold | No response occurs when the selected mode requires withholding. |
| Commission | A response occurs on a withhold trial. |
| Omission | No response occurs on a response trial. |
| Wrong colour | In multi-button mode, the response does not match the ink colour. |
- Interference
- In multi-button mode, incongruent minus congruent median correct-response time. It is not reported for one-button mode because congruent trials usually require withholding.
- Variability
- Sample standard deviation of correct-response times.
Privacy and export
Responses remain in memory unless you download or print them. There is no analytics, tracking, storage, or server submission.