Understanding aggression in autism across childhood: Comparisons with a non-autistic sample.

The team compared aggression levels between autistic and non-autistic youth at different ages. They used a quasi-experimental design, meaning they grouped kids by diagnosis and age rather than randomly assigning them.

Participants ranged from early childhood through adolescence. The study looked at both physical acts like hitting and verbal acts like name-calling.

Autistic kids under six showed more physical aggression than their typical peers. By adolescence, the physical gap closed, but autistic teens still used more verbal aggression.

The pattern suggests early physical aggression fades with age while verbal spikes remain.

Amore et al. (2011) found that two-thirds of autistic youth showed aggression toward caregivers. The new data add a timeline: the risk is highest for physical acts in preschool years.

Yarar et al. (2022) showed that social quality of life improves as autistic adults age. Together these studies hint that social stress and aggression both shift from physical to verbal with maturity.

Chan et al. (2021) found physical-activity programs boost social skills in the same age range. Pairing early motor play with aggression coaching could hit both targets.

BCBAs can now time their interventions. Focus on physical aggression before age six when the gap is widest. Shift to verbal skills and social coping in middle school when words become the main weapon. Use brief motor or sports routines as a gateway to teach respectful communication.