Mini Games
Stroop Test
Tap the ink color, not the word — a 30-round brain game that measures your focus and Stroop interference.
How to Play
- Pick the INK COLOR of the word — not what the word says.
- 30 trials. Be as fast and accurate as you can.
- We measure your 'Stroop interference' — the slowdown on mismatched trials.
My Best Score
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Higher is better — beat your record!
For fun and self-reference only — not a medical diagnosis.
Ranking
| Rank | Nickname | Score |
|---|---|---|
| Rank | Nickname | Score |
|---|---|---|
- |  You | - |
Your record is only saved in this browser.
Records are not shared across different browsers or devices.
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The Stroop Test turns a classic psychology experiment into a quick brain game. A color word such as RED appears in a different ink, and you tap the ink color, not the word. There are 30 trials with four colors (red, blue, green, yellow); half match their ink and half don't. Your total score rewards both speed and accuracy, and your Stroop interference shows how many milliseconds slower you were when the word and the ink disagreed. Compare grades, climb the live leaderboard and send a challenge link to friends. For fun and self-reference only, not a medical or cognitive assessment.
Frequently Asked Questions
Q. How does this Stroop test work?
A. You get 30 trials and tap the ink color of each word while ignoring what it says. Half of the trials match (RED in red) and half don't (RED in blue), using four colors.
Q. Why is the Stroop test hard?
A. Because reading is automatic for fluent readers, the word's meaning competes with the ink color you are asked to name. J. R. Stroop described this slowdown in 1935, and it is now called the Stroop effect.
Q. How is the score calculated?
A. Your average reaction time on correct answers is subtracted from 1,500 ms and multiplied by your accuracy, so faster and more accurate means a higher score. Stroop interference — the time gap between mismatched and matched trials — is shown separately.
Q. Is this a medical or attention test?
A. No. It is a game for fun and self-reference, not a diagnosis. If you have a color vision deficiency, telling red from green can be hard, so your result may not reflect your focus.