Answers are grounded in this paper and cite their sources.
ABA (applied behavioural analysis) interventions have the most robust body of evidence showing their efficacy in improving the outcome of autism. Comprehensive ABA interventions include the Lovaas model and a group of more recent naturalistic developmental behavioural interventions. Randomised clinical trials have shown developmental gains associated with those interventions in key domains (cognitive, language, play, social behaviour), although initial results have not been consistently replicated.
No takes yet. Share an insight, caveat, or question.
Éric Fombonne (2020) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: