Emotion dysregulation and the core features of autism spectrum disorder.

Leung et al. (2014) asked if kids with autism feel emotions harder to control than typical kids. They gave parents an 18-item Emotion Dysregulation Inventory. Parents rated how often their child showed outbursts, mood swings, or quick anger.

The team also scored each child's repetitive behaviors, social problems, and hyperactivity. They compared 56 autistic kids and teens to 32 age-matched typical kids.

Autistic kids scored twice as high on emotion dysregulation. The biggest link was not with social or attention problems, but with repetitive behaviors like hand flapping or strict routines.

In plain numbers, every 10-point rise in dysregulation predicted a 7-point jump in repetitive behaviors.

Bradley et al. (2026) later tested the same 18-item tool in 6- to young learners and found it holds up across race and sex. They also showed three clear emotion profiles: mild, moderate, and severe. Severe profiles matched high parent stress and poor sleep, proving the inventory works in real clinics.

Iversen et al. (2021) pooled the kids in a meta-analysis. They found that weak executive skills like poor set-shifting go hand in hand with more repetitive behaviors. This supports C et al.'s link, but points to brain skills as a shared driver.

Uljarević et al. (2017) looked at fear instead of broad dysregulation. They saw that higher fear tracked with more repetitive behaviors only in autistic kids, not in Down syndrome or older typical kids. The pattern fits C et al., but shows the emotion-RRB link is specific to autism.

If repetitive behaviors spike when emotions boil over, teaching calm-down skills may directly reduce those behaviors. You can add brief emotion-regulation lessons to your behavior plan. Track both outbursts and RRBs on the same graph. When one drops, you will often see the other follow.