Autism & Developmental

Does gender matter? A one year follow-up of autistic, attention and anxiety symptoms in high-functioning children with autism spectrum disorder.

May et al. (2014) · Journal of autism and developmental disorders 2014
★ The Verdict

High-functioning autistic girls show the same core traits as boys but express more social anxiety and less hyperactivity, so probe beneath surface behavior.

✓ Read this if BCBAs conducting diagnostic or reassessment evaluations of school-age girls with suspected ASD.
✗ Skip if Practitioners serving only adult or non-verbal clients.

01Research in Context

01

What this study did

Tamara and her team tracked 76 high-functioning autistic kids for one year.

Half were girls, half were boys, .

Parents and teachers filled out the same three checklists at the start and again one year later.

The forms measured autism traits, ADHD symptoms, and anxiety levels.

02

What they found

Core autism signs stayed the same for both sexes over the year.

Boys showed more hyperactivity and impulsivity than girls at both time points.

Girls reported higher social anxiety than boys, even though their autism traits looked alike.

In plain words: the girls were just as autistic, but they moved less and worried more.

03

How this fits with other research

Eussen et al. (2016) followed older autistic teens and found girls had more depression than boys.

This extends Tamara’s finding that girls carry heavier internalizing loads as they age.

Harrop et al. (2018) used eye-tracking and showed autistic girls still looked at faces like typical girls, while autistic boys did not.

That lab result helps explain why teachers may miss girls: their social attention looks “normal,” even when anxiety is high.

Pielech et al. (2016) scanned adult brains and found only autistic males showed atypical social-circuit activity.

Together, these studies build a clear line: biology and behavior both show sex-different autism tracks.

Day et al. (2021) added that girls who hide their traits suffer more depression and stress.

This gives a reason for Tamara’s higher anxiety scores: camouflaging may cost girls extra emotional energy.

04

Why it matters

If you assess a quiet, well-behaved autistic girl, do not assume she is “less affected.”

Ask about social worry and check for camouflaging.

Screen girls for anxiety and depression even when hyperactivity is low.

Adjust your treatment plan: teach coping skills, not just social skills.

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Add two anxiety questions to your intake form for every quiet autistic girl you see this week.

02At a glance

Intervention
not applicable
Design
pre post no control
Sample size
100
Population
autism spectrum disorder, neurotypical
Finding
null

03Original abstract

Gender differences in autism spectrum disorder (ASD) symptoms and associated problem behaviours over development may provide clues regarding why more males than females are diagnosed with ASD. Fifty-six high-functioning children with ASD, and 44 typically developing controls, half of the participants female, were assessed at baseline (aged 7-12 years) and one-year later, collecting measures of autism, attention and anxiety symptoms, school placement and support information. Findings indicated no gender differences in autistic symptoms. Males were more hyperactive and received more integration-aide support in mainstream schools, and females were more socially anxious. Overall, similar gender profiles were present across two time points. Lower hyperactivity levels in females might contribute to their under-identification. Implications are discussed using a biopsychosocial model of gender difference.

Journal of autism and developmental disorders, 2014 · doi:10.1007/s10803-013-1964-y