Digit Span Test

A working memory exercise used in neuropsychological assessment

How It Works

You will see a series of numbers appear one at a time. After the last number disappears, enter the sequence using the number pad.

The sequences start short and get longer. The test ends when you miss two in a row at the same length.

Choose a mode:

Forward Repeat numbers in the same order
Backward Repeat numbers in reverse order
Full Test Forward then backward
ADHD and Working Memory: Working memory — the ability to hold information in mind while using it — is one of the most consistently affected cognitive abilities in ADHD. Digit span is a direct measure of this. Most adults score between 5 and 8 digits forward. A lower span doesn't mean something is wrong — it's a window into how your working memory works.

3-8 minutes · no sign-in required · no data stored

3
Current span
0
Correct
0
Trials
Forward
—
Get ready...
Enter your answer below

Your Working Memory Results

—
Forward span
(digits)
—
Backward span
(digits)
—
Accuracy
(%)
—
Total trials
completed
Correct (forward) Correct (backward) Incorrect
About your score: Digit span is a measure of short-term verbal working memory. An average adult scores 5-8 digits forward and 4-6 digits backward. People with ADHD often score in the lower end of these ranges, especially on the backward version (which requires mental manipulation). This is a single exercise — not a clinical assessment. Results should never be used to self-diagnose.

Based on the Digit Span subtest from the Wechsler Adult Intelligence Scale tradition. Public domain paradigm. No data stored or sent.