Assessment & Research

Demographic and Cognitive Profile of Individuals Seeking a Diagnosis of Autism Spectrum Disorder in Adulthood.

Happé et al. (2016) · Journal of autism and developmental disorders 2016
★ The Verdict

Older diagnosed adults can show stronger self-reported traits yet better test scores, so lean on their reports, not just your observations.

✓ Read this if BCBAs doing adult autism evaluations in clinics or private practice.
✗ Skip if Practitioners who only serve young children.

01Research in Context

01

What this study did

Riches et al. (2016) looked at adults who asked for an autism check-up.

They wrote down each person’s age, self-rated autism traits, and scores on thinking tests.

The team wanted to see if older adults in the group looked different from younger ones.

02

What they found

Adults who left with an autism label said their traits were stronger.

Surprise: within that group, older adults rated traits even higher, yet scored better on thinking tests.

The data hint that years of practice may hide, but not remove, core autism signs.

03

How this fits with other research

Godfrey et al. (2023) add that autistic adults forget story details faster and rarely use “the big idea” to help recall.

Torenvliet et al. (2023) show multivariate normative comparisons catch twice as many autistic adults with odd cognitive profiles; these outliers also report more distress.

Jackson et al. (2025) seem to clash: adults over 50 with high autistic traits had lower memory, working memory, and speed scores. The gap closes when you notice G et al. studied people already diagnosed and using coping skills, while A et al. sampled trait carriers from the general public; life experience, not age itself, may drive the lift in scores.

04

Why it matters

When you assess an adult who “doesn’t look autistic,” trust their trait report anyway. Pair self-ratings with brief cognitive checks; if scores are strong, probe for learned work-arounds you can reinforce. Flag anyone whose profile feels lopsided—Torenvliet et al. (2023) tell us those clients carry extra stress and may need supports beyond the label.

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Add a quick coping-strategy interview to every adult assessment and chart whether strengths match or mask reported traits.

02At a glance

Intervention
not applicable
Design
case series
Sample size
146
Population
autism spectrum disorder
Finding
not reported

03Original abstract

Little is known about ageing with autism spectrum disorder (ASD). We examined the characteristics of adults referred to a specialist diagnostic centre for assessment of possible ASD, 100 of whom received an ASD diagnosis and 46 did not. Few demographic differences were noted between the groups. Comorbid psychiatric disorders were high in individuals with ASD (58 %) and non-ASD (59 %). Individuals who received an ASD diagnosis had higher self-rated severity of ASD traits than non-ASD individuals. Within the ASD group, older age was associated with higher ratings of ASD traits and better cognitive performance. One interpretation is that general cognitive ability and the development of coping strategies across the lifespan, do not necessarily reduce ASD traits but may mitigate their effects.

Journal of autism and developmental disorders, 2016 · doi:10.1007/s10803-016-2886-2