A parent-mediated intervention to increase responsive parental behaviors and child communication in children with ASD: a randomized clinical trial.

Davidovitch et al. (2013) tested a short parent program called Focused Playtime Intervention. Parents of preschoolers with autism learned to follow the child’s lead, wait, and respond during 15-minute daily play sessions.

The team flipped a coin to assign families to FPI or a wait-list. They filmed parents before and after to count responsive moves like imitating or describing the child’s toy.

Every parent in FPI became more responsive, no matter the child’s starting level. Expressive language jumped only for kids whose words were under the 12-month mark at baseline.

Kids who already talked in short sentences stayed flat on language scores, but their parents still played better.

Ouyang et al. (2024) pooled 32 parent-training trials and found all big-name models work, but each shines at a different step. Their network map puts FPI inside the winning set, giving the 2013 data new weight.

Bradshaw et al. (2017) used PRT with toddlers as young as 15 months and saw language gains across the board. The gap: their sample started with almost no words, matching the subgroup that actually grew in Michael’s study. The two studies line up once you split by baseline level.

Whiting et al. (2015) ran a 12-week PRT parent group and still saw higher language scores three months later. They kept the kids who began with the weakest skills, so their follow-up success echoes Michael’s low-baseline bonus.

Screen first: if a preschooler uses fewer than twelve-month-level words, FPI-style responsive play is worth the effort. If the child already combines words, target other goals like social or play skills while you keep parent responsiveness high. Either way, you get warmer parent–child loops without extra staff hours.