Disclaimer. Multitasking scores depend heavily on device and practice. This is not an assessment of any condition. Full disclaimer

Multitasking

React to a symbol while remembering a flash.

Start testAbout 2 minutes · demo and practice first

What it measures

Accuracy on two tasks at once: responding to a centre symbol, and remembering which of four slots flashed.

DurationAbout 2 minutes

Format24 dual-task trials

Device and setupKeyboard (Space) or one touch target, plus taps or arrow keys to choose a slot.

Accessibility limitsRequires seeing brief flashes and responding within 1.5 seconds.

Free resultAccuracy for both tasks

PrivacyYour answers are never sent to advertisers. Signed in, your results are saved to your account.

How it is scored

Symbol task accuracy and slot memory accuracy are scored on the same completed trials, plus joint accuracy where both were right.

Starter content, version 1. Difficulty is provisional until pilot data supports it. Full methodology

What Premium adds

Joint accuracy and timing tradeoff. One upgrade covers all ten tests. See Premium

Limits

Multitasking scores depend heavily on device and practice. This is not an assessment of any condition.

For education, entertainment and general self-exploration only. These activities are not medical or psychological assessments and do not diagnose, prevent or treat any condition. Results are estimates of performance on these tasks and can be affected by practice, attention, language, your device and your surroundings. If you have concerns about your thinking, vision or hearing, consult a qualified healthcare professional.