Reliability and Validity of the Diagnostic Interview for Anxiety, Mood, and OCD, and Related Neuropsychiatric Disorders
Gilliam, CM and Bowe, W and Bragdon, LB and Davis, E and Hannan, SE and Steinman, SA and Wootton, BM and Worden, BL and Tolin, D, Reliability and Validity of the Diagnostic Interview for Anxiety, Mood, and OCD, and Related Neuropsychiatric Disorders, ABCT 48th Annual Convention, 20-23 November, 2014, Philadelphia, Pennsylvania (2014) [Conference Extract]
Recently, the American Psychiatric Association published the 5th edition of the DSM (DSM5), making several important changes from the DSMIVTR. At this time, there is no published
structured interview for DSM5 psychiatric disorders. Furthermore, most existing structured
interviews assess only the diagnostic criteria, without gathering specific information needed for differential diagnosis and treatment planning. The Diagnostic Interview for Anxiety, Mood, and OCD and Related Neuropsychiatric Disorders (DIAMOND; Tolin et al., 2013) is a
semistructured clinical interview that was designed to assess the diagnostic criteria for a range of DSM5 disorders, with additional clinical information (e.g., associated cognitive, emotional, and behavioral features; common differential diagnoses) gathered for the Anxiety, Mood, and OCD and Related Disorders. The poster will introduce the readers to this new diagnostic interview, which has gone through several rounds of initial feasibility testing, with iterative feedback from users at various stages of professional development. Mean (SD) administration time is 74.0 (30.2) minutes, or 32.6 (24.0) minutes per DSM5 diagnosis, making the DIAMOND feasible for use in clinical, research, and training settings. Data collection is ongoing (current n = 21) to evaluate the reliability and validity of the DIAMOND for diagnosing Anxiety, Mood, and OCD and Related Disorders. By the time of the conference, we anticipate having data from at least 50 adults seeking psychiatric treatment in various settings and levels of care (e.g. specialty outpatient clinic for anxiety and OCD related disorders, schizophrenia rehabilitation program, an inpatient psychiatric unit). Interrater reliability (IRR) will be examined by administering the DIAMOND twice within a 48hour period by two different interviewers. Testretest reliability will be examined by administering a third DIAMOND approximately one week from the initial administration by one of the first two interviewers. For evaluating convergent and divergent validity analyses, we administered a range of selfreport measures that address the diagnoses covered by the DIAMOND (obsessivecompulsive disorder, body dysmorphic disorder, hoarding disorder, trichotillomania, skinpicking disorder, specific phobia, social phobia, panic disorder, depression, mania, posttraumatic stress disorder, psychosis, eating disorders, somatoform disorders, substance use disorders, and attention deficithyperactivity disorder). IRR will be determined by calculating kappa coefficients for each diagnosis and intraclass correlation coefficients for each severity rating between rater 1 and rater 2 at time 1.Testretest reliability will be determined by calculating kappa coefficients for each diagnosis and intraclass correlation coefficients for each severity rating for the same rater at times 1 and 2. Convergent and divergent validity will be determined by calculating betweensamples ttests, using the presence and absence of each Anxiety, Mood, and OCD and Related Disorder as the independent variables, and scores on the selfreport measures as the dependent variables. Findings will be discussed in light of clinical utility and research applications.