What does Trail Making test measure?

It screens processing speed, visual scanning, and executive function.

How do I complete the test?

Select numbers in exact order from 1 to 20 as fast as possible.

Tap or click the numbers from 1 to 20 in ascending order.

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Timer: 00:00

Next number: 1

Start to begin.

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Completion time is the key output. Lower completion times typically indicate better performance.

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Can I use keyboard only?

Use Tab to focus each number button and Enter to select.

Is this diagnostic?

No. It is educational and not a diagnosis.