Oral Symbol Digit Test
Cognition: Processing Speed
Acronym(s)
OSD
Language(s)
English, Spanish
Description
An assessment of processing speed. Per the key at the top of the page, participants are asked to orally call out the number that corresponds to each symbol in a grid.
Administration Info
Age range: 5+
Test Time: 3 minutes
Available in: NIH Toolbox
Administration: Examiner-administered
Devices: iPad
Additional equipment required: Yes
Qualification Level: Cognition access required
Supplies & Equipment
- OSD Examination Sheet
Sample Item(s)

Training Video
Resources
Resources available upon login.