digit span
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Indications
- assessment of attention
- evaluation of delirium
- evaluation of short-term memory
Procedure
Ask the subject to repeat after you, sequences of digits of increasing length, 1st up to length of 8 in the forward direction, then up to length of 7 in the reverse direction.
| direction | (3) | (4) | (5) | (6) | (7) | (8) |
|---|---|---|---|---|---|---|
| Forward: | 249 | 8527 | 29683 | 571946 | 8159362 | 39815146 |
| Reverse: | 174 | 5297 | 63851 | 294738 | 4192751 |
Score the longest correct sequences in the forward & reverse directions.
A normal forward digit span is 7 +/- 2
Backwards is 2 less than forward