The Problem No One is Talking About: Forensic Evaluators’ Lack of Familiarity with Dimensional Approaches to Personality and Psychopathology

Historically, forensic evaluators have relied heavily upon various editions of the Diagnostic and Statistical Manual of Mental Disorders when rendering psycholegal opinions. The field of mental health is increasing moving toward dimensional models of personality and psychopathology in lieu of traditional DSM categorical models, though the domains of forensic psychology and psychiatry have been slow to make this transition. The current study therefore sought to examine forensic evaluators' familiarity with dimensional approaches to personality and psychopathology, namely the Alternative DSM-5 Model for Personality Disorders (AMPD) and the Hierarchical Taxonomy of Psychopathology (HiTOP). Forensic psychologists and psychiatrists (<i>N</i> = 54) completed an online survey designed to assess their familiarity with these models, as well as to determine if forensics practitioners are using these models in clinical practice. Participants endorsed greater familiarity with the AMPD, with a large majority of participants indicating they were unfamiliar with the HiTOP model. Few participants endorsed using these models in their clinical forensic practice. Implications for making the transition to dimensional models within forensic evaluation are discussed, as are paths forward for future research.