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🔀 Task-Switch Lite — Letter/Number Rule

If the cue is letter: vowel vs consonant. If number: odd vs even. Switching costs extra time. Original mini-task — not an IQ.

IQ TestBrain Tests & Games › Task-Switch Lite — Letter/Number Rule
Follow the on-screen rule. About 20 trials.
How it works

Follow the on-screen rule. About 20 trials. Task switching is a cognitive-flexibility toy. Not a diagnosis and not an IQ.

↔️ Flanker Lite — Center Arrow🧵 Trail-Making Lite — 1-A-2-B➗ Mental Math Speed Test🟢 Go/No-Go Practice — Press vs Withhold
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📅 Last updated: 2026-08-26 · ✔ Reviewed by the All-Lifes editorial team · About · Methodology
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