Assessment & Research

Adolescents with autism spectrum disorder show a circumspect reasoning bias rather than 'jumping-to-conclusions'.

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

Autistic teens gather extra evidence before choosing, so pause and let them finish thinking.

✓ Read this if BCBAs running social-skills or vocational groups with middle- and high-school students.
✗ Skip if Practitioners who work only with non-verbal or preschool clients.

01Research in Context

01

What this study did

Guiberson et al. (2014) watched autistic teens play a bead-guessing game.

The teen saw beads drawn from one of two jars and had to pick the jar.

They could ask for as many beads as they wanted before deciding.

The team counted how many beads each teen requested.

02

What they found

Autistic teens asked for more beads than typical peers before choosing.

They did not jump to quick conclusions.

The extra beads show a circumspect, or extra-careful, thinking style.

03

How this fits with other research

Sparapani et al. (2016) saw the opposite pattern in preschoolers.

Their young autistic children asked fewer questions when learning a new task.

Age matters: little kids skip help, teens gather extra data.

Sapey-Triomphe et al. (2021) also looked different.

Their autistic adults stuck to first guesses and did not update when rules changed.

Task type matters: bead tasks show caution, probability tasks show rigidity.

Ghosn et al. (2025) extend the teen finding to social games.

Autistic youth took longer because they double-checked fairness, not because they were slow.

04

Why it matters

Give autistic teens more wait time before they answer.

Their silence is thinking, not defiance.

Use clear stop signals so they know when enough info is enough.

This reduces decision fatigue and keeps sessions moving.

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→ Action — try this Monday

Count to five silently after you ask an autistic teen to pick an activity.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
43
Population
autism spectrum disorder
Finding
positive
Magnitude
medium

03Original abstract

People with autism spectrum disorders (ASD) often take longer to make decisions. The Autism-Psychosis Model proposes that people with autism and psychosis show the opposite pattern of results on cognitive tasks. As those with psychosis show a jump-to-conclusions reasoning bias, those with ASD should show a circumspect reasoning bias. Jumping-to-conclusions was assessed in a sample of 20 adolescents with ASD and 23 age-matched controls using the jumping-to-conclusions beads task. Both groups demonstrated equivalent levels of confidence in decision-making, however the ASD group required more beads than controls before making their decision. Furthermore, there was a positive correlation between the beads required and degree of autism symptoms. Consistent with the Autism-Psychosis Model, a more circumspect reasoning bias was evident in ASD.

Journal of autism and developmental disorders, 2014 · doi:10.1007/s10803-013-1897-5