Free Stroop Color Shape Test Online
Curious about your focus level and selective attention? Try the Stroop Color Shape Test! This is a variation of the classic Stroop Effect Test, where geometric shapes and colors create visual conflicts to measure how quickly and accurately you can stay focused while ignoring distractions.
Play the Stroop Test Now
How to Play
- Goal: Identify the border color of the shape as quickly as possible
- Shapes: Circle, square, or triangle with colored borders
- Challenge: Ignore the text inside the shape, focus only on the border color
- Scoring: Based on accuracy and reaction time
Example: If you see a blue-bordered triangle with "RED" inside → click the BLUE button!
Time Left
60
Score
0
Accuracy
0%
Ready...
Click the button that matches the BORDER COLOR of the shape, not the word inside!
Test Complete!
Response Quality Over Time
This chart shows your response quality throughout the test. Higher scores indicate better performance in identifying border colors while resisting text interference. The orange dashed line shows your historical average.
Response Speed Progression
This chart displays your response intervals during the test. Lower intervals indicate faster visual processing between shape presentations. The purple dashed line represents your historical average speed.
What is the Stroop Color Shape Test?
The Stroop Color Shape Test is a modern twist on the classic Stroop Color Word Test, a psychology experiment widely used to measure selective attention and cognitive control.
Classic Stroop = word meaning vs. word color conflict.
Shape Stroop = border color vs. inside word conflict.
This means you have to stay sharply focused on the relevant feature (the border color), while ignoring misleading information from shape, text, or position. It’s a stronger test of selective attention, inhibitory control, and processing speed than the classic version.
Why Is This a Focus & Attention Challenge?
Unlike simple reaction games, the Color-Shape Stroop Test forces you to:
- Ignore distractions (irrelevant words, shapes, or positions).
- Process multiple features simultaneously under time pressure.
- React quickly and accurately, balancing speed with control.
If you succeed, it’s a sign of strong selective attention and mental flexibility. If you get tricked, it shows how easily irrelevant details can hijack focus—a reminder of how distraction works in daily life.
That’s why the Color-Shape Stroop is often used as both a focus game and a mini attention span test.
What Do Studies Say About Shape Stroop Variants?
Psychologists have long studied Stroop variants that go beyond words and colors. Research shows that using geometrical shapes and spatial positions can make the conflict even more demanding:
eStroop (Brunetti et al., 2021, Frontiers in Psychology) – Implemented digital Stroop tasks with geometrical shapes. Results showed that shape-based stimuli produce measurable interference, confirming their validity as Stroop variants.
Spatial Stroop (Viviani et al., 2024, Behavior Research Methods) – Compared peripheral vs. central Stroop tasks, showing that conflicts involving stimulus position create strong attention interference effects.
Stroop Test – Overview (ScienceDirect Topics) – Summarizes decades of Stroop research and notes that variations (shapes, spatial cues, symbols) are widely used to study attention control and cognitive flexibility.
Together, these studies confirm that the color-shape Stroop is not just a playful modification, but a scientifically grounded attention test.
What Your Score Means
Fast + accurate → You've got excellent focus and distraction resistance.
Slower or more errors → You might find it harder to filter out irrelevant info (like background noise or multitasking at work).
💡 Don't worry—this game is for fun and practice, not a medical test. But playing it regularly can be a neat way to train your brain to stay sharp and focused.
Who Should Try It?
🎓 Students → Boost concentration for studying.
💼 Professionals → Train your brain to ignore distractions at work.
🧠 Brain training fans → Add a new twist to your focus games collection.
👦 Kids → Easier to understand than the word-based Stroop test.