Digit Span Test

Part of the Thomas D. Stoker Cognitive Test Battery

This test has two parts that run back to back.

Part 1 — Forward: A sequence of digits will appear on screen. When it disappears, type them back in the same order.

Part 2 — Backward: The same thing, but type the digits in reverse order. So if you see 3 7 1, you type 1 7 3. The test will tell you clearly when you are switching to this part.

Sequences get longer as you go. Each part stops after two errors at the same length. Do not try to write the digits down.

Forward test complete. The Backward test is about to begin.
This time, type the digits in reverse order. So if you see 4 8 2, you type 2 8 4.
Built by Thomas D. Stoker — thomasdstoker.com/cognitive-testing
I'd genuinely love to know how you get on. Drop me a message via the contact page, leave a comment on the site, or find me on Facebook.
Digit Span Test | Version 0.003 | Created: 2026-04-01