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Effectiveness and Types of Interventions for Autism Spectrum Disorder: A Systematic Review, Meta-Analysis, and
John K Muthuka1,2, Ruvimbo Zimunya3, Andrina Simengwa3
1Epidemiology, Public Health and Biostatistics, Jomo Kenyatta University of Agriculture and Technology, Nairobi, KEN.
Cureus
|July 23, 2026
Summary
This review found autism spectrum disorder (ASD) interventions are effective, with a success rate around 62%. Effectiveness varies by intervention type, context, and participant characteristics, highlighting the need for tailored approaches.
Area of Science:
- Neuroscience
- Developmental Psychology
- Evidence-Based Practice
Background:
- Autism spectrum disorder (ASD) presents complex challenges requiring effective interventions.
- Identifying the efficacy of various ASD interventions is crucial for clinical practice and research.
- Heterogeneity in intervention outcomes necessitates a comprehensive analysis of influencing factors.
Purpose of the Study:
- To estimate the overall effectiveness of autism spectrum disorder (ASD) interventions.
- To identify sources of heterogeneity in ASD intervention outcomes using frequentist and Bayesian methods.
- To synthesize evidence from randomized controlled trials (RCTs) published between 2004 and 2025.
Main Methods:
- Systematic review and meta-analysis of 41 RCTs (n=3,008) on ASD interventions.
- Utilized random-effects models (REML), Bayesian hierarchical modeling, meta-regression, and sensitivity analyses.
- Followed PRISMA guidelines for systematic reviews and meta-analyses.
Main Results:
- A significant positive overall effect of ASD interventions was found (effect size=0.506, success proportion=62%).
- Substantial heterogeneity was observed (I²=82.45%), with digital/technology-based, nutritional, and behavioral interventions showing higher effects.
- Meta-regression identified intervention type, context, and age at onset as significant moderators of effectiveness.
Conclusions:
- ASD interventions demonstrate moderate, statistically significant effectiveness, with considerable variability.
- Intervention effectiveness is context-dependent, influenced by type, delivery setting, and participant characteristics.
- Findings support the need for personalized intervention strategies based on identified moderators.
Related Concept Videos
01:19Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
01:26Modeling in Therapy
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