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Aim. This study examined psychometric properties of the Polish adaptation of the Level of Personality Functioning Scale-Brief Form 2.0 (LPFS-BF 2.0) measuring features corresponding to self - and interpersonal impairment of personality functioning as defined in the diagnostic guidelines for Personality Disorder in the DSM-5 Section III. Methods. The study involved a non-clinical sample of N = 242 adults (52.9% female; Mage = 30.63 years, SDage = 11.81 years). To evaluate the criterion validity, the Personality Inventory for DSM-5 (PID-5), Personality Inventory for ICD-11 (PiCD), Agency-Communion-Inventory (AC-IN), and Mental Health Continuum-Short Form (MHC-SF) were administered. Results. The LPFS-BF 2.0 yielded two reliable latent components that correspond to an interpretation of self - and interpersonal functioning and showed relevant associations with a personality disorder severity index, maladaptive personality traits, well-being, and personality constructs of agency and communion. The LPFS-BF 2.0 also demonstrated incremental validity over and above all the PID-5 pathological traits with respect to global well-being as an outcome. Conclusions. The Polish adaptation of the LPFS-BF 2.0 is a psychometrically and conceptually sound measure to assess features corresponding to self and interpersonal impairment of personality functioning as defined in the DSM-5 Section III. However, findings warrant replication in clinical populations. [ABSTRACT FROM AUTHOR]

Aim. This study examined psychometric properties of the Polish adaptation of a Self-Report Form of the DSM-5 Level of Personality Functioning Scale (LPFS-SR). It is a scale designed to measure general impairment, jointly with a detailed assessment of distinguished components of personality functioning characterized in terms of disturbances in self (identity and self-direction) and interpersonal (empathy and intimacy) functioning - Criterion A in the DSM-5 Alternative Model for Personality Disorders (AMPD). Methods. The study involved a non-clinical sample of N = 242 adults (52.9% female; Mage = 30.63 years; SDage = 11.81 years). To provide an evaluation of the criterion validity, Personality Inventory for DSM-5 (PID-5), Personality Inventory for ICD-11 (PiCD), Level of Personality Functioning Scale - Brief Form 2.0 (LPFS-BF 2.0), and Big Five Inventory-2 (BFI-2) were administered. Results. Our data supported that identity, self-direction, intimacy, and empathy components of the LPFS-SR can be characterized by a single, global dimension of personality dysfunction, consistent with the assumption that DSM-5 Criterion A is a relatively homogeneous construct. The LPFS-SR showed good reliability estimates and demonstrated conceptually sound associations with the PD severity index and related measures of personality functioning. Moreover, all the LPFS-SR components manifested at least partial distinction from maladaptive personality traits (i.e., Criterion B in the DSM-5 AMPD). Conclusions. These findings provide support for the validity of the Polish adaptation of the LPFS-SR as an operationalization of impairment in the core and common features of personality pathology described in the DSM-5 alternative model. [ABSTRACT FROM AUTHOR]

Aim. This paper presents results of a study on the Polish adaptation of the Personality Inventory for DSM-5 (PID-5), which was developed to measure pathological traits under a new, dimensional model proposed in Section III of the DSM-5 as part of a hybrid alternative system of personality disorder diagnosis. Method. The study involved a clinical sample (N = 129 individuals with a mean age of M = 32.40; SD = 9.08; 84.5% with a personality disorder diagnosis) and a non-clinical one (N = 1,043 individuals with a mean age of M = 34.98; SD = 15.71). Two questionnaires: the PID-5 and the MMPI-2 (Minnesota MultiphasicPersonality Inventory - 2) were use in the study. Results. The results showed the Polish adaptation of the PID-5 to be reliable and valid (the internal consistency coefficients for the PID-5 scales and subscales were high in clinical sample and at satisfactory level in non-clinical sample). All scales and almost all subscales of the PID-5 turned out to differentiate between clinical and non-clinical samples. The PID-5 scales and subscales exhibited a consistent pattern of relationships with the Personality Psychopathology Five (PSY-5) dimensions and with the clinical scales of the MMPI-2. Conclusions. Obtained data demonstrate the PID-5 to be a satisfactory operationalization of the pathological personality trait model, and at the same time corroborate the scientific value of the DSM-5 model itself. [ABSTRACT FROM AUTHOR]

The latest edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) proposes a novel hybrid system of personality disorder diagnosis in addition to the one previously laid down in the DSM-IV-TR. This alternative diagnostic system, published within Section III of the DSM-5, was hoped to overcome the inherent limitations of categorical diagnosis by integrating the categorical and dimensional approaches to personality disorders. As such, it constitutes a bridge between psychiatric pathology classifications and findings from psychological research on the structure of normal personality. At the core of the hybrid DSM-5 system lies a new model of pathological personality traits, operationalized using the Personality Inventory for DSM-5 (PID-5). This paper outlines the background and main features of the DSM-5 hybrid system of personality disorder diagnosis with a focus on the dimensional model of pathological traits and definitions thereof. The current status, application potential and limitations of the DSM-5 diagnostic system and the pathological traits model are also discussed. In another paper, the authors present the PID-5 inventory and report on a study investigating a Polish adaptation of this instrument. [ABSTRACT FROM AUTHOR]