Comparative effectiveness trial: Modular behavior approach for young autistic children compared to comprehensive behavioral intervention.
A 5–10 hour weekly modular ABA program produced adaptive-skill gains equal to standard 15-plus hour comprehensive ABA for toddlers with autism.
01Research in Context
What this study did
Anderson et al. (2024) ran a head-to-head trial. They compared two ABA packages for toddlers with autism.
One group got the new MAYAC plan: 5–10 hours a week of short, flexible modules. The other group got standard comprehensive ABA: 15 or more hours a week. Kids were picked at random and tracked on daily-living skills.
What they found
After one year both groups gained adaptive skills. The brief MAYAC program was not worse than the heavy-duty plan.
Less time still moved the needle. Families using 5–10 hours saw child progress like those using 15-plus.
How this fits with other research
Rodgers et al. (2021) pooled 491 preschoolers and showed two years of intensive ABA gives small-to-medium gains. Cynthia’s trial now says medium gains can happen at half the dose.
Eldevik et al. (2006) warned that 12 h/week yields only small, maybe useless change. The new data seem to clash, but Sigmund’s kids also had intellectual disability and used older teaching plans. MAYAC’s modular design and stricter progress checks may explain the brighter outcome.
McKinnon et al. (2024) logged large gains with 27 h/week Australian EIBI. Their high-intensity result does not cancel Cynthia’s; it simply sets the ceiling, while MAYAC offers a floor that still meets the non-inferiority mark.
Why it matters
You now have an evidence-based option for families who can’t manage 20-plus hours. Start a 5–10 hour modular program, track adaptive behavior each month, and expect progress on par with longer regimes. It stretches limited staff, cuts family stress, and keeps kids moving forward.
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02At a glance
03Original abstract
This 24-week single-blind trial tested a modular approach for young autistic children (MAYAC) that was delivered for fewer hours per week and modified based on child progress and parental input compared to comprehensive behavioral intervention treatment as usual (CBI, TAU). Participants were autistic children, ages 18-60 months of age. MAYAC was initially 5 h of intervention per week, one of which was parent training and the other four direct therapy focusing on social communication and engagement, but additional modules could be added for up to 10 h per week. Comprehensive behavior intervention was delivered for ≥15 h per week. Outcome measures included the Vineland Adaptive Behavior Scales; VABS, the Ohio Autism Clinical Improvement Scale - Autism Severity; OACIS - AS and the Pervasive Developmental Disorder Behavior Inventory - Parent; PDDBI-P. Implementation and parent satisfaction measures were also collected. Fifty-six children, mean age of 34 months, were randomized. Within-group analysis revealed significant improvements from baseline to week 24 for both MAYAC (p < 0.0001) and CBI, TAU (p < 0.0001) on the VABS. The noninferiority test was performed to test between group differences and MAYAC was not inferior to CBI, TAU on the VABS (p = 0.0144). On the OACIS - AS, 48.0% of MAYAC and 45.5% of CBI were treatment responders there were no significant changes on the PDDBI-P, for either group. Treatment fidelity was high for both groups (>95%) as was parent satisfaction. Findings from this small trial are promising and suggest MAYAC may be an alternative for some young autistic children and their families to CBI, TAU.
Autism research : official journal of the International Society for Autism Research, 2024 · doi:10.1002/aur.3240