The aim of the present study was to evaluate the inter-rater reliability of the Italian translation of the Structured Clinical Interview for DSM-5 Personality Disorders (SCID-5-PD) in a sample of clinical adult participants.
A sample of 104 in- and outpatients who were consecutively admitted to the Clinical Psychology and Psychotherapy Unit of San Raffaele Turro Hospital, Milan, Italy, were administered the SCID-5-PD by trained graduate clinical psychologist using a pairwise interview design.
In the present study, intraclass correlation coefficient (ICC) values ranged from .88 (Dependent PD and Histrionic PD) to .94 (Avoidant PD) for dimensional SCID-5-PD interview dimensional ratings (median ICC value = .94). Adequate Cohen k values were observed for SCID-5-PD dichotomous ratings of presence of clinically significant subthreshold features (median κ value = .78, SD = .06), as well as for SCID-5-PD interview categorical PD diagnoses (median κ value = .89, SD = .11).
The present study findings suggest that the Italian translation of the SCID-5-PD is likely to yield reliable assessment of both dimensional and categorical PD diagnoses, at least in a sample of clinical adults who volunteered to ask for psychotherapy treatment.