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Processing Speed Mediates the Longitudinal Association between ADHD Symptoms and Preadolescent Peer Problems
Anders L Thorsen1, Jocelyn Meza2,3, Stephen Hinshaw2,3
1Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway.
Childhood inattention predicts later peer problems, with slow processing speed acting as a key mediator. These findings emphasize the importance of addressing inattention and processing speed for improving adolescent social functioning.
Area of Science:
- Child Psychology
- Neurodevelopmental Disorders
Background:
- Childhood inattention and hyperactivity-impulsivity are associated with social difficulties.
- Intellectual function may influence the relationship between ADHD symptoms and peer problems.
Purpose of the Study:
- To examine the link between childhood inattention/hyperactivity-impulsivity and peer problems.
- To investigate the mediating role of intellectual function, specifically processing speed.
Main Methods:
- Longitudinal study of 127 children (32 with ADHD).
- Assessed inattention and hyperactivity-impulsivity using parent/teacher reports (Swanson Nolan and Pelham-IV).
- Evaluated peer problems (Strengths and Difficulties Questionnaire) and intellectual functioning (WISC-III).
Main Results:
- Childhood inattention significantly predicted later peer problems.
- Slow processing speed partially mediated this relationship.
- The association remained significant even after controlling for ADHD status.
Conclusions:
- Processing speed is crucial in understanding the link between childhood inattention and adolescent peer difficulties.
- Early interventions targeting inattention and processing speed may improve social outcomes.
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