Combined Modality Intervention for ADHD With Comorbid Reading Disorders: A Proof of Concept Study

Area of Science:

• Neuroscience
• Developmental Psychology
• Educational Psychology

Background:

• Attention-deficit/hyperactivity disorder (ADHD) often co-occurs with reading disorder (RD).
• The efficacy of reading interventions combined with stimulant medication for ADHD+RD is not fully understood.
• Understanding treatment effects is crucial for improving academic outcomes in this population.

Purpose of the Study:

• To compare the effectiveness of two reading programs, with and without methylphenidate, for children with ADHD+RD.
• To assess the impact of reading instruction and stimulant medication on reading abilities and behavior.
• To explore potential synergistic effects of combined treatments.

Main Methods:

• A randomized controlled trial involving 65 children aged 7-11 with ADHD+RD.
• Children received intensive phonological or strategy-based reading instruction, or general academic/social skills training.
• Interventions were combined with either methylphenidate or a placebo in a double-blind manner over 10 weeks.

Main Results:

• Stimulant medication effectively reduced hyperactive/impulsive behaviors but did not improve reading skills.
• Children participating in reading programs demonstrated significant reading gains compared to controls.
• Medication status did not influence the reading improvements achieved through the reading programs.

Conclusions:

• Intensive reading instruction is effective for improving reading skills in children with ADHD+RD.
• Adjunctive stimulant medication may help manage behavioral symptoms but does not enhance reading outcomes.
• Further large-scale research is needed to confirm these findings and explore potential treatment interactions.