Efficacy of a Parent-Implemented Pivotal Response Treatment for Children with Autism Spectrum Disorder.
One hour of weekly parent PRT/ESDM coaching at home gives toddlers with autism more social-communication acts in 12 weeks.
01Research in Context
What this study did
Bozkus-Genc et al. (2024) coached parents of toddlers with autism at home. Each week for 12 weeks the family got one hour of live training in PRT and ESDM tricks like shared control and natural reinforcement.
No control group; the team simply watched parents and kids before and after the 12 lessons.
What they found
By lesson five most parents were using the naturalistic strategies correctly. After the final session the toddlers kept showing new social-communication acts such as pointing, showing, and saying words.
The gains stayed for the whole study period.
How this fits with other research
The picture looks rosy at first glance. Bradshaw et al. (2017) and Whiting et al. (2015) already showed that brief parent PRT lifts toddler language and the gains hold for months. Ouyang et al. (2024) pooled 32 trials and agreed: parent PRT and ESDM both work.
But Geoffray et al. (2025) clouds the sky. Their big European trial gave toddlers 12 hours of ESDM per week for two years and saw no extra benefit over usual care. Why the clash? Geoffray used clinic staff, higher hours, and stricter outcome tests. Gulden used low-dose parent coaching at home and tracked day-to-day social acts. Same model, different dose and yardstick.
Van Noorden et al. (2022) split the difference. They showed that a quick group class plus short individual coaching still lifts parent fidelity and child engagement, proving you can keep the schedule light and still win.
Why it matters
You can teach parents PRT/ESDM moves in one short home visit per week and see toddler social skills bloom within three months. Start with simple naturalistic targets, track parent fidelity by session five, and stay realistic: low-intensity coaching works for daily communication, but may not move broad developmental scores measured in clinic trials.
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02At a glance
03Original abstract
Deficits in attention, communication, imitation, and play skills reduce opportunities for children with autism to learn from natural interactive experiences that occur throughout the day. These developmental delays are already present by the time these children reach the toddler period. The current study provided a brief 12 week, 1 hour per week, individualized parent-child education program to eight toddlers newly diagnosed with autism. Parents learned to implement naturalistic therapeutic techniques from the Early Start Denver Model, which fuses developmental- and relationship-based approaches with Applied Behavior Analysis into their ongoing family routines and parent-child play activities. Results demonstrated that parents acquired the strategies by the fifth to sixth hour and children demonstrated sustained change and growth in social communication behaviors. Findings are discussed in relation to providing parents with the necessary tools to engage, communicate with, and teach their young children with autism beginning immediately after the diagnosis.
Journal of autism and developmental disorders, 2024 · doi:10.1177/1362361307098516