Minnesota Multiphasic Personality Inventory-2-Restructured Form Profiles Among Adults With Attention-Deficit/Hyperactivity Disorder: Examining the Effect of Comorbid Psychopathology and ADHD Presentation.

This article focuses on characterizing Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) profiles among adults diagnosed with attention-deficit/hyperactivity disorder (ADHD), examining differences between those with ADHD alone, ADHD with comorbid psychiatric disorders, and a non-ADHD psychiatric comparison group. The study found that adults with ADHD only exhibited a unique MMPI-2-RF profile marked by an isolated clinical elevation on the Cognitive Complaints scale, whereas those with ADHD and comorbid psychopathology, as well as the psychiatric comparison group, showed widespread clinical elevations across multiple scales. Additionally, subtle but statistically significant differences emerged between ADHD presentations (Predominantly Inattentive vs. Combined), with the Combined presentation showing higher externalizing symptoms and the Inattentive presentation showing more internalizing and interpersonal difficulties, though these differences were not clinically elevated on average. The findings support the MMPI-2-RF's utility in differentiating ADHD alone from ADHD with comorbidities and in identifying relevant psychiatric conditions that may influence attention complaints in adults.