Assessment & Research

Executive function in adolescents with Down Syndrome.

Lanfranchi et al. (2010) · Journal of intellectual disability research : JIDR 2010
★ The Verdict

Teens with Down syndrome show wide executive-function gaps that forecast later behavior issues.

✓ Read this if BCBAs writing skill-acquisition or behavior-reduction plans for adolescents with Down syndrome.
✗ Skip if Clinicians serving only adults or clients without intellectual disability.

01Research in Context

01

What this study did

Kaufman et al. (2010) compared teens with Down syndrome to kids of the same mental age.

They gave each teen a set of executive-function tests.

The tests looked at shifting rules, holding facts in mind, and stopping impulses.

02

What they found

The teens with Down syndrome scored far lower on almost every test.

Problems showed up in working memory, set-shifting, and inhibition alike.

The gaps were large and held up across the whole group.

03

How this fits with other research

Miezah et al. (2026) later saw the same wide gaps in adults, so the trouble does not fade with age.

Micai et al. (2021) pooled many studies and found only a small inhibition deficit; the big drop S et al. saw shrinks when younger kids are mixed in.

Soltani et al. (2025) turned the bad news into a forecast: weak working memory and inhibition in the teen years predict more inattention and rule-breaking six months later.

04

Why it matters

Expect broad executive-function limits in learners with Down syndrome. Break tasks into tiny steps, give visual cues, and cut dual demands. Check working memory and inhibition early; low scores signal future behavior problems you can head off now.

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→ Action — try this Monday

Cut one extra demand from your learner’s task—drop the verbal prompt while they shift materials.

02At a glance

Intervention
not applicable
Design
quasi experimental
Sample size
30
Population
down syndrome, neurotypical
Finding
negative
Magnitude
large

03Original abstract

BACKGROUND: The present work is aimed at analysing executive function (EF) in adolescents with Down Syndrome (DS). So far, EF has been analysed mainly in adults with DS, showing a pattern of impairment. However, less is known about children and adolescents with this syndrome. Studying adolescents with DS might help us better understand whether performances on EF tasks of individuals with DS are determined by age or by Alzheimer disease, as some studies suggest, or whether their performances are directly related to DS cognitive profile. METHOD: A battery of EF tasks assessing set shifting, planning/problem-solving, working memory, inhibition/perseveration and fluency, as well as a tasks assessing sustained attention has been administered to a group of 15 adolescents with DS and 15 typically developing children matched for mental age. All EF tasks were selected from previous studies with individuals with intellectual disabilities or from developmental literature and are thought to be useful for the samples considered. RESULTS: The present results revealed that the group of individuals with DS performed at a significantly lower level on tasks assessing set shifting, planning/problem-solving, working memory and inhibition/perseveration, but not on the tasks assessing fluency. In addition, individuals with DS demonstrated a greater number of errors and less strategy use for the sustained attention task. CONCLUSIONS: The results suggest a broad impairment in EF in adolescents with DS, and are consistent with several similar studies conducted with adults with DS. We assume that EF deficit is a characteristic of DS.

Journal of intellectual disability research : JIDR, 2010 · doi:10.1111/j.1365-2788.2010.01262.x