Executive functions and ADHD symptoms predict educational functioning in children with ADHD: A two-year longitudinal study

The aim of this two-year longitudinal study was to investigate whether deficits in executive functions (EF) predict impaired everyday functioning after two years in children and adolescents with ADHD. A sample of 135 participants with and without ADHD were assessed with neuropsychological tests of EF and parent ratings of everyday functioning with the Child Behavior Checklist at baseline (Mage = 11.6, SD = 2.0), and after two years (Mage = 13.6, SD = 2.1). Results showed that ADHD symptoms and impaired EF at baseline predicted lower educational functioning when controlling for general cognitive ability (i.e. "IQ") at two-year follow-up. Furthermore, the results indicated that increased ADHD symptoms predicted problems both with social functioning and functioning in leisure activities (i.e. sport/hobbies/chores/jobs), whereas higher IQ predicted better functioning in leisure activities. The current study primarily highlights the importance of detecting and treating ADHD symptoms in order to prevent reduced functional outcomes, and that EF tests may contribute to identify children in need of educational interventions targeting EF deficits.