A short browser practice session
For people who want short color-word decisions with two clear choices. The exercise requires distinguishable colors and familiarity with the page language; choose a different task if either makes the choices unclear.
Free browser trainer
Stroop-style Color Challenge
Decide whether a color word matches its ink color. Choose 10, 20 or 30 rounds, or practise for 30, 60 or 90 seconds, and review accuracy and response time.
Start
About this exercise
This Stroop-style color challenge uses one word and one ink color. Decide whether the color named by the word agrees with the visible ink. The task mixes agreement and conflict rather than asking you to name every ink color. It is a simplified matching game, not a clinical Stroop test.
This is practice on a specific task, not a medical assessment or IQ test. Results depend on settings, device, input method and familiarity. Compare like-for-like sessions; a higher score does not establish general cognitive improvement.
Who this is for
Choose the task that fits what you want to practise.
Come back to the same setup
Compare sessions with the same settings, language and input method. Review accuracy and unanswered trials before response time. These are task results, not population norms or a measure of intelligence.
History and privacy
The latest 10 local sessions are kept on this device. Signed-in sessions are saved to your account; guest sessions can be imported after review. No digits, positions, words or answers are uploaded.
How to practise: Stroop-style Color Challenge
- One color word appears in one ink color. Use the left arrow for Correct or the right arrow for Wrong.
- Choose Correct if the word names its ink color. RED in red matches; RED in blue does not. This is a simplified Stroop-style matching task, not a clinical Stroop test.
- Choose 10/20/30 rounds or a 30/60/90-second timed session. You have five seconds per answer. Round mode has equal matching and conflicting trials; timed mode draws from shuffled balanced blocks and stops at the selected active time. Pauses do not use time. A deadline without an answer is unanswered; the final unfinished answer window counts too.
- Review correct responses for matching and conflicting trials alongside median response time. Color-vision differences, language and input method affect this task; use another exercise if the colors are not distinguishable.
Understanding your results
Accuracy counts every scored trial, including unanswered trials. Response time is the median of answered trials and is shown alongside accuracy, never as a substitute for it.
Base XP: 10 / 20 / 30 for the three session lengths, before the daily bonus. Answer at least half the rounds; timed mode requires one answer per 6 seconds of selected time. Imported sessions do not earn XP.
This is practice on a specific task, not a medical assessment or IQ test. Results depend on settings, device, input method and familiarity. Compare like-for-like sessions; a higher score does not establish general cognitive improvement.
History and privacy
The latest 10 local sessions are kept on this device. Signed-in sessions are saved to your account; guest sessions can be imported after review. No digits, positions, words or answers are uploaded.
Understanding your results
Use the metrics together. Faster answers with more mistakes do not necessarily represent better task performance.
| Metric | What it means |
|---|---|
| Correct | Correct answers out of all scored trials. Wrong and unanswered trials remain in the total. |
| Median response | The middle response time among answered trials, including wrong answers. Unanswered trials are excluded. |
| Matching / conflicting | Correct matching and conflicting answers are counted separately. A timed session can contain different numbers of trials; compare accuracy as well as the raw correct count. |
Choose your settings
Rounds mode offers 10, 20 or 30 trials, with equal matching and conflicting words. Timed mode offers 30, 60 or 90 seconds of active play. Every answer window is at most five seconds, and pauses stop the session clock. Words always use the page language.
Base XP: 10 / 20 / 30 for the three session lengths, before the daily bonus. Answer at least half the rounds; timed mode requires one answer per 6 seconds of selected time. Imported sessions do not earn XP.
Practice tips
Stroop-style Color Challenge
Read the word and inspect the ink before choosing Correct or Wrong. Use the left and right arrow keys or the two buttons. Keep the same mode, session length and language when comparing sessions.
Come back to the same setup
Compare sessions with the same settings, language and input method. Review accuracy and unanswered trials before response time. These are task results, not population norms or a measure of intelligence.
Take a break when needed
Pause or open the guide when you need a break. Resume the same trial when ready; paused time is excluded.
Frequently asked questions
Practical answers about the task, settings and saved results.
What happens when the timer ends?
The session stops at the selected active time. An open answer window without a response is recorded as unanswered. If an answer was already recorded, it is not counted twice. Pause time is excluded.
Can I practise without an account?
The latest 10 local sessions are kept on this device. Signed-in sessions are saved to your account; guest sessions can be imported after review. No digits, positions, words or answers are uploaded.
How should I compare my results?
Compare sessions with the same settings, language and input method. Review accuracy and unanswered trials before response time. These are task results, not population norms or a measure of intelligence.
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