Table 1.

Inclusion and exclusion criteria

Category	Inclusion	Exclusion
Literature	Article published (or online prepublication) in peer-reviewed journal	Grey literature such as dissertations, conference presentations or proceedings
Language	Article published in English	Article published in non-English journal
Intervention	Intervention was focused intervention practice Intervention was behavioral, developmental, academic and/or vocational	Intervention was comprehensive treatment program Intervention was medical or psychopharmacological
Outcomes	Outcomes were behavioral, developmental, academic, mental health or vocational for autistic children and youth	Outcomes were physical health, neuroimaging, or EEG Only outcomes for family or caregivers reported
Study Design	Article examined efficacy of intervention with group or single case design	Article primarily descriptive or correlational Article tested moderation of effects on previously published or nonsignificant main effects
Population/ Participants	Some participants identified as autistic Some participants between birth and 22 years of age	Outcomes for participants with autism/in specified age range were not presented separately