About this test: Multitasking is not one skill, so this assessment measures four different forms of it. Each part is short, and each one begins with a brief unscored practice so you never start a scored round without knowing the controls.
Part 1 – Dual-Task Cost:
- Click or tap the right panel the moment it turns red
- First you take four reaction trials with nothing else to do
- Then you take six more while keeping a brick-breaker ball alive with ← → or A / D (drag on the game area on touch screens)
- The score reflects how little your reaction speed suffered when the second task was added
Part 2 – Task Switching:
- A cue above the shape says COLOUR or SHAPE
- Under COLOUR: answer left for blue or green, right for red or yellow
- Under SHAPE: answer left for a circle, right for a square or triangle
- Answer with ← / A and → / D, or the two on-screen buttons
- The score combines accuracy with your switch cost — how much slower you are when the rule changes
Part 3 – Visual + Audio Divided Attention:
- Answer left when you see a circle (●) and ignore squares (■) and triangles (▲)
- Answer right when you hear a high beep and ignore low beeps
- Sometimes both happen at once — answer both, in either order, any time inside the trial's response window
- Do not answer a side where nothing appeared. A response on an empty channel counts against you
- Audio must be working. The practice screen plays two tones and asks you to confirm you heard both. If your device cannot play sound, this part is skipped rather than scored
Part 4 – Parallel Monitoring:
- Two independent streams run side by side for 40 seconds
- Answer left or right only when that side shows a green target
- Ignore the grey ✕ markers, and do not answer when a side is empty
- The score combines how many targets you caught with how clean your responses were
Scoring: Each part is converted to a 0–100 score, and the four are averaged into an overall multitasking score. The four parts are also reported separately, because a strong result in one form of multitasking does not guarantee a strong result in another.
Session controls: Use Pause to take a break — the trial you were on restarts, so nothing is charged to your reaction time. End Test abandons the session and saves nothing to your history.