Autism & Developmental

Effects of Dog-Assisted Therapy on Communication and Basic Social Skills of Adults With Intellectual Disabilities: A Pilot Study.

Scorzato et al. (2017) · Intellectual and developmental disabilities 2017
★ The Verdict

Twenty weeks of dog-assisted therapy lifts attention, imitation, and some social skills in adults with severe-profound ID.

✓ Read this if BCBAs running day or residential programs for adults with severe ID.
✗ Skip if Clinicians who only serve verbal clients or lack therapy-dog access.

01Research in Context

01

What this study did

Scorzato et al. (2017) ran a 20-week dog-assisted therapy program for adults with severe-profound intellectual disability. Half the adults got weekly dog sessions. The other half got no extra treatment. Staff tracked attention, play, imitation, and basic social skills.

02

What they found

The dog group made medium gains in paying attention, copying others, and simple social moves. The no-treatment group stayed the same. Skills did not improve across the board—only some areas moved.

03

How this fits with other research

Anonymous (2017) is the French summary of the same study, so the positive result shows up twice. Dudley et al. (2019) extends the idea to kids: just 10 minutes with a dog boosted talking and eye contact in 6- to 8-year-old autistic inpatients. Jorgenson et al. (2020) looks like a contradiction at first: only 1 of 5 preschoolers with autism talked more when dog time was used as reinforcement. The difference is in how the dog was used. Ivano gave structured weekly sessions; Jorgenson offered short dog access only after the child spoke. Brief contingent access is weaker than a full program.

04

Why it matters

If you serve adults with severe ID, a weekly dog-assisted session can be an easy add-on. You do not need fancy equipment—just a trained therapy dog and a 20-week plan. Start with short visits and track attention and imitation. Pair the dog with your usual prompting so gains last when the dog leaves.

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→ Action — try this Monday

Schedule one 30-minute dog visit this week, measure how long each client watches or copies the handler, and plot the data.

02At a glance

Intervention
other
Design
randomized controlled trial
Sample size
39
Population
intellectual disability
Finding
positive
Magnitude
medium

03Original abstract

Thirty-nine adults with severe to profound intellectual disability (ID) were randomly assigned to either an experimental group (n = 21) or a control group (n = 18). Assessment was blinded and included selected items from the International Classification of Functioning, Disability and Health (ICF), the Behavioral Assessment Battery (BAB), and the Learning Accomplishment Profile (LAP). The experimental group, who attended a dog-assisted treatment intervention over a 20-week period, showed significant improvements in several cognitive domains, including attention to movement (BAB-AM), visuomotor coordination (BAB-VM), exploratory play (BAB-EP), and motor imitation (BAB-CO-MI), as well as in some social skills, as measured by LAP items. Effects were specific to the intervention and independent of age or basic level of disability.

Intellectual and developmental disabilities, 2017 · doi:10.1352/1934-9556-55.3.125