Executive function
CognitionKit Digit Symbol Substitution (DSST)
The CognitionKit DSST is a global measure of cognitive ability, requiring multiple cognitive domains to complete effectively.
- Administration time: 90 seconds
Task format
The task presents participants with an array of abstract symbols associated with numbers. When a particular number is highlighted on screen, the participant must draw the corresponding abstract shape using their index finger on the smartphone. This is a timed test, so the participant must try to complete as many symbol-to-number matches within the allotted timeframe.

Outcome measures
Outcome measures include total correct, errors and latency (movement latency and response latency).

Recommended use
We would recommend using this test to assess cognitive function in:
