The interrater reliability of the Swedish version of the Structured Clinical Interview for the DSM-5 Alternative Model for Personality Disorders, Module I and Module II for diagnosing personality disorders among adults referred to specialized psychiatric care - a pilot study.

BACKGROUND: There is an ongoing debate on which model for diagnosing personality disorders is optimal, with the DSM-5 Alternative Model for Personality Disorders being one of the most prominent. The Structured Clinical Interview for the DSM-5 Alternative Model for Personality Disorders (SCID-5-AMPD) is a semistructured diagnostic interview to guide the assessment of the three parts of the Alternative DSM-5 Model for Personality Disorders (hereafter referred to as the Alternative Model), as published in DSM-5 Section III. The structured interview has been tested and translated to several languages, however, not to Swedish. OBJECTIVES: To examine the psychometric properties of the Swedish translation of the Structured Clinical Interview for DSM-5 Alternative Model for Personality Disorders, Module I and Module II for treatment seeking persons with suspected personality pathology including reliability in a Swedish clinical context. METHODS: This study of 38 outpatients with suspected personality disorder studied the test-retest interrater reliability (Intraclass correlation coefficient (ICC)), estimates of Cronbach's alpha values in a clinical setting. RESULTS: The main results were that ICC ranged between 0.1 and 0.56 for the domain scales of Modules I and II, whereas the estimates of scale reliability (α) ranged from 0.25 to 0.85. CONCLUSION: Despite the challenges posed by the limited number of raters and the small sample size, this study provides valuable insights into the application of the SCID-5-AMPD model within a Swedish context. While the results suggest that further exploration is needed to fully establish the model's effectiveness and benefits in clinical practice, they also highlight the importance of proper training, clinical experience and calibration for achieving optimal reliability. Continued research is essential to refine the tool and assess its broader applicability. With appropriate enhancements in training and methodological rigor, the SCID-5-AMPD has the potential to significantly contribute to the assessment of personality disorders.