OTSLPCohortAmerican journal on intellectual and developmental disabilities2016

The Role of Executive Function in Independent Living Skills in Female Adolescents and Young Adults With Fragile X Syndrome.

Arianna Martin, Eve-Marie Quintin, Scott S Hall and 1 others

PMID 27611354

WHAT IT FOUND

Young women with Fragile X Syndrome scored higher on a performance-based independent living test than matched controls, but caregiver-reported daily skills showed no difference.

Phonemic verbal fluency predicted performance-based independence, but earlier executive function did not predict later outcomes.

Key findings

01The Fragile X group performed significantly higher than the idiopathic developmental delay group on the Contingency Naming Test and the Independent Living Scales.

02Phonemic verbal fluency and age explained a significant proportion of variance in performance-based independent living skills for the Fragile X group.

03Executive function measures taken in late childhood or adolescence did not predict independent living skills in young adulthood, though one measure approached significance.

STILL TO COME

How it was doneWhat they foundWhat it means for OTsWhat it means for SLPs

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What it does not show

The study focused only on females, so results do not generalize to males with Fragile X Syndrome. Recruitment required travel and financial resources, likely selecting for a more independent subgroup of participants. The control groups were small (18 and 16 participants). Executive function measures had strong language components and did not capture all aspects of executive function, such as planning. The discrepancy between performance-based (ILS) and caregiver-reported (VABS) results may reflect measurement differences rather than true skill gaps.

Declared interests

None reported.

The easy way to misread this

Do not assume that higher performance-based scores indicate overall superior independence. The caregiver-reported daily living skills showed no difference from controls, and the study participants were likely a more independent subgroup due to recruitment barriers.

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