Assessing Executive Functions in Children With Developmental Dyslexia: A Comprehensive Approach

Area of Science:

• Neuroscience
• Developmental Psychology
• Educational Psychology

Background:

• Developmental dyslexia (DD) is often linked to executive function (EF) impairments.
• Key EF domains affected include inhibition, working memory, and cognitive flexibility.

Purpose of the Study:

• To assess executive function (EF) in children with developmental dyslexia (DD).
• To examine the influence of co-occurring attention deficit hyperactivity disorder (ADHD) on EF.
• To compare performance-based tests with rating measures for EF assessment.

Main Methods:

• Evaluated 40 children with DD (aged 7-16) using the Child Executive Functions Battery (CEF-B) and the Behaviour Rating Inventory of Executive Function (BRIEF).
• CEF-B assessed inhibition, working memory, flexibility, and planning.
• BRIEF gathered parent and teacher ratings of executive behaviors.

Main Results:

• Significant EF deficits were found, especially in inhibition, working memory, and planning (67.5% of participants).
• BRIEF ratings indicated widespread EF difficulties (55.9%).
• Low correlations between CEF-B and BRIEF suggest distinct aspects of EF are measured, supporting a multi-method approach. Children with ADHD reported greater difficulties on BRIEF.

Conclusions:

• Children with DD exhibit substantial executive function (EF) deficits.
• A multi-method approach is crucial for comprehensive EF assessment in DD.
• Targeted interventions and further research into EF mechanisms in DD are necessary.