The relationship between obsessive–compulsive spectrum disorders and DSM-5 dysfunctional personality domains in a nonclinical sample of Italian women

To evaluate the usefulness of the DSM-5 maladaptive personality domains in explaining the similarities and differences among four disorders included in the obsessive-compulsive spectrum, 428 Italian community-dwelling women (mean age = 31.96 years, SD = 12.30 years) were administered the Obsessive-Compulsive Spectrum Disorder Scales and the Personality Inventory for DSM-5-Short Form as part of an ongoing online survey on women's health. Multiple Indicators Multiple Causes (MIMIC) confirmatory bifactor analysis results showed that the OCSD general factor (i.e., obsessive-compulsive spectrum factor) was positively associated with Negative Affectivity, whereas Body Dysmorphic Disorder (BDD), Hoarding Disorder (HD), and Skin-Picking Disorder (SPD) specific factors showed significant and substantial differential relationships with dysfunctional personality domains. Specifically, BDD was positively associated with Negative Affectivity, Detachment and Psychoticism domains; HD was associated with high Negative Affectivity and Psychoticism; and SPD was associated with Detachment. © 2020 John Wiley & Sons, Ltd.