INK, NOT WORD · 20 TRIALS
Choose the color of the ink. Ignore what the word says.
Complete exactly 20 trials and review your accuracy and reaction time.
READY?
Press R, B, G, or Y—or tap a labeled color button.
Answer the ink color, not the word. Every choice has a written label, shape, and keyboard shortcut.
HOW TO PLAY
Start the test and focus on the color of the large word.
Ignore the word's meaning. Choose its ink color with R, B, G, Y, or a labeled button.
Finish all 20 trials to see accuracy, average reaction time, and your fastest correct response.
ABOUT THE TASK
The Stroop effect describes the extra interference that can occur when a word names one color but is printed in another. Reading the familiar word can compete with the instruction to report its ink.
This recreational browser version mixes matching and mismatching color words. It records speed and accuracy, but it is not a clinical or diagnostic assessment.
READ YOUR RESULT
Accuracy is correct choices divided by all 20 trials. Average and best reaction times use correct answers only, measured from the word appearing to your response.
Device latency, input method, attention, and practice can affect browser results. Compare repeated sessions on the same device instead of treating one score as a fixed ability.
QUESTIONS
Always answer the ink color. If the word RED is printed in blue, choose BLUE. The written word is a distraction.
The standard test always ends after 20 responses. It reports the percentage correct plus average and best reaction times from correct responses.
Endless mode gives you one life. Each correct answer starts another trial with a shorter deadline. A wrong choice or timeout ends the run.
Yes. Tap the four large, labeled buttons. Keyboard players can use R for red, B for blue, G for green, and Y for gold.
No. This is a short recreational game and cannot diagnose attention, neurological, or other health conditions.