| Spatial Span assesses working memory capacity, and is a visuospatial analogue of the Digit Span test. |
Administration time
Around 5 minutes, depending on level of impairment
Task
White squares are shown, some of which briefly change colour in a variable sequence. The subject must then touch the boxes which changed colour in the same order that they were displayed by the computer (for clinical mode) or in the reverse order (for reverse mode). The number of boxes increases from 2 at the start of the test to 9 at the end, and the sequence and colour are varied through the test.
Test modes
Two modes: clinical mode and reverse mode.
Outcome measures
This test has six outcome measures, covering span length (the longest sequence successfully recalled), errors, number of attempts and latency.
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