Phenotypic overlap between core diagnostic features and emotional/behavioral problems in preschool children with autism spectrum disorder.

Georgiades et al. (2011) looked at 335 preschoolers with autism. They asked parents to fill out the CBCL. This form lists 100-plus behaviors like tantrums, rocking, and shyness.

The team ran a factor analysis. This is a math tool that groups related items. They wanted to see if emotional problems sit apart from core autism traits or blend right in.

Two big buckets showed up. Bucket one: emotional, behavioral, and repetitive problems. Bucket two: social and communication deficits. Both buckets carried equal weight in the autism picture.

Parents who scored high on either bucket felt more stress. This means meltdowns and rigidity are not extra issues; they are part of the same autism profile.

Maniezki et al. (2021) studied toddlers and saw the same two buckets. They added a twist: kids with lower daily-living skills and higher-income parents scored fewer behavior problems. This warns us that parent background can hide real needs.

Morales-Hidalgo et al. (2023) surveyed Spanish school kids and found up to a large share had emotional problems. They extended the 2011 preschool data upward in age and across cultures, showing the pattern holds.

Ten Hoopen et al. (2025) saw that overactivity on the ADOS-2 slightly raised autism scores, while anxiety slightly lowered them. At first glance this looks like a contradiction: if behaviors are core, why do they shift scores? The answer is that the behaviors are core, but they can still mask or mimic traits during testing. Knowing this helps you interpret scores more fairly.

Stop labeling meltdowns as separate mental-health add-ons. Include the CBCL or a quick parent checklist in every intake. Track both buckets—emotional and social—when you write goals and pick interventions. Reducing tantrums is not a side project; it is central to teaching communication and social skills.