ADHD and personality: a meta-analytic review.

Area of Science:

• Psychiatry
• Psychology
• Behavioral Science

Background:

• Attention-Deficit/Hyperactivity Disorder (ADHD) is a prevalent neurodevelopmental disorder.
• Understanding the interplay between personality traits and ADHD symptoms is crucial for comprehensive assessment and intervention.
• The Five-Factor Model (FFM) and its integrated version (IFFM) provide a framework for examining personality dimensions.

Purpose of the Study:

• To conduct a meta-analysis examining the relationship between personality dimensions within the FFM and IFFM and ADHD symptom domains.
• To investigate the specific associations between personality traits and the inattention (IA) and hyperactivity/impulsivity (HI) symptom clusters of ADHD.

Main Methods:

• A meta-analysis was performed, synthesizing data from up to 40 datasets.
• The study analyzed personality dimensions from the FFM and IFFM in relation to IA and HI symptom domains.
• Statistical analyses explored the strength and direction of associations, including moderation effects.

Main Results:

• Both IA and HI were associated with lower conscientiousness, lower agreeableness, and higher neuroticism.
• Conscientiousness showed a stronger association with IA than HI.
• Agreeableness was more strongly related to HI than IA.
• The link between conscientiousness and HI was moderated by age and sample type, with stronger associations in children and clinical samples.

Conclusions:

• Personality dimensions, particularly conscientiousness, agreeableness, and neuroticism, are significantly associated with ADHD symptom domains.
• These findings support multi-pathway theories of ADHD etiology and highlight the importance of considering personality in clinical contexts.
• The differential associations and moderating factors suggest complex underlying mechanisms linking personality and ADHD.