Autism & Developmental

Functional Behavior-Based Cognitive-Behavioral Therapy for Obsessive Compulsive Behavior in Children with Autism Spectrum Disorder: A Randomized Controlled Trial.

Vause et al. (2020) · Journal of autism and developmental disorders 2020
★ The Verdict

Add a quick FBA before CBT and watch obsessive routines in verbal autistic kids fall fast.

✓ Read this if BCBAs delivering CBT to school-age, high-functioning autistic clients.
✗ Skip if Teams serving non-verbal or teens only.

01Research in Context

01

What this study did

Vause et al. (2020) tested a new twist on CBT. They started with a full functional behavior assessment, then built the CBT skills around each child’s triggers.

Kids were verbal, aged 7-13, with high-functioning autism and daily obsessive routines. Half got the new Fb-CBT; half got the usual school counseling.

Therapists taught the kids to spot their own “warning thoughts,” swap in replacement actions, and self-reward. Parents joined the last ten minutes of every session.

02

What they found

The Fb-CBT group showed large drops in repetitive rituals and time stuck in routines. Gains stayed strong six months later.

The control group barely changed. Large, significant difference.

03

How this fits with other research

Perihan et al. (2020) pooled 23 CBT anxiety trials and saw only moderate effects. Tricia’s study got larger change by aiming CBT at OCBs instead of worry.

Sofronoff et al. (2007) used plain CBT for anger in Asperger kids and saw small, slow gains. Adding a full FBA first, like Tricia did, looks like an upgrade.

Byiers et al. (2025) later tried letting parents pick the top three goals. Their modular CBT beat standard CBT for anxiety. Tricia’s paper helped open the door for that next step.

04

Why it matters

If you run CBT for autistic learners, start with an FBA. Map the exact cue-behavior-payoff loop, then teach cognitive skills that match that loop. You can keep the same session length and still get bigger, faster drops in rituals.

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→ Action — try this Monday

Run a 20-minute ABC observation on the child’s top ritual, then teach one replacement thought-action chain in your next CBT slot.

02At a glance

Intervention
functional communication training
Design
randomized controlled trial
Sample size
37
Population
autism spectrum disorder
Finding
strongly positive
Magnitude
large

03Original abstract

Children with autism spectrum disorder (ASD) experience obsessions and compulsions similar to those specified in DSM-5 for obsessive compulsive disorder yet little controlled research exists on treating these behaviours. Thirty-seven children (7-13 years old) were randomly assigned to a 9-week functional behavior-based cognitive behavior therapy (Fb-CBT) or Treatment As Usual. Independent assessors administered measures pre- and post-treatment and at 6-months. Two primary outcome measures indicated statistically significant differences between groups, with large corrected effect sizes (Hedge's g = 1.00 and 1.15, respectively). This is the first known RCT to exclusively treat obsessive compulsive behaviors (OCBs) in children and youth with high functioning (IQ ≥ 70) ASD, and suggests that Fb-CBT treatment shows promise in decreasing these behaviors and improving quality of life. Trial Registration This trial was registered with ClinicalTrials.gov (ID: NCT03123146).

Journal of autism and developmental disorders, 2020 · doi:10.1007/s10803-018-3772-x