Symbol Digit Modalities Task (30 Worksheets) - Attention

Thirty printable symbol digit worksheets in the format of the Symbol Digit Modalities Test. A key pairs each symbol with a number; the person writes (or says) the matching number under each symbol in the rows below, as quickly and accurately as possible. Every page has space to record correct items, errors, and completion time, so processing speed can be tracked from week to week.

Designed by a clinician with 10+ years in brain injury and cognitive rehabilitation.

What's included (30 worksheets):

• 10 basic worksheets: a 4-symbol key and 44 items
• 10 moderate worksheets: a 7-symbol key and 65 items
• 10 complex worksheets: a 10-symbol key and 85 items, with similar-looking symbols
• The key order changes from page to page, so it has to be learned fresh each time
• US Letter, print-ready

How it's graded: key size and item count rise across the levels, and the complex pages add near-identical symbols that punish a quick glance.

Who it's for: OTs and SLPs working on processing speed and attention, rehabilitation programs, educators, and caregivers supporting practice at home.

Try it first: download a free moderate-level page from this set, no email required. A free online version, Symbol Match, runs on our tools site.

Why buy direct from RehabWorksheets.com

• Personal and clinic licenses for every set
• Instant digital download after checkout
• Designed by a clinician

Please note: these materials support cognitive stimulation and structured practice. They are not medical treatment, and no specific therapeutic outcomes are claimed.