Validation of the Polish Self and Interpersonal Functioning Scale (SIFS-PL) in community and clinical samples

Our findings underscore the robust psychometric properties of the Polish version of the SIFS, rendering it a promising tool for both screening and extensive research on personality disorders within contemporary dimensional models such as the AMPD and ICD-11. Its application in clinical settings can also be advocated. However, general scores and subscale scores might serve distinct purposes, warranting further investigation into their predictive validity.