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)
Oral Symbol Digit Test - Practice Item

Training Video

Resources

Resources available upon login.

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