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🔳 Change Detection Lite — Four Color Squares

Four colored squares, a 500 ms blank, then four squares again. Tap Same or Change — one color may swap. Original mini-task — not an IQ.

IQ Test › Brain Tests & Games › Change Detection Lite — Four Color Squares
Study the first display, then tap Same or Change. About 16 trials.
How it works

Study the first display, then tap Same or Change. About 16 trials. Visual working-memory change detection is a lab paradigm. This web set is not a clinical test.

👁️ Visual Memory Test⬛ Corsi Blocks — Forward Tap Span📍 Spatial 2-Back Lite — Grid Position Only🎨 Simon Span — Color Sequence Memory
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📅 Last updated: 2026-08-27 · ✔ Reviewed by the All-Lifes editorial team · About · Methodology
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