Assessing DSM-5-oriented level of personality functioning: Development and psychometric evaluation of the Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1).

The alternative model for personality disorders (AMPD) in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) features a Level of Personality Functioning Scale, measuring intrinsic personality processes that include identity, self-direction, empathy, and intimacy. This study describes the development and psychometric evaluation of a semistructured interview schedule for the multi-item assessment of the level of personality functioning, the Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1). Eighty patients and 18 community subjects completed the STiP-5.1. Patients additionally completed the Brief Symptom Inventory, the Severity Indices of Personality Problems, and the Structured Clinical Interview for DSM-IV Axis I and Axis II Personality Disorders. Good interrater reliability was observed in subsamples of patients (n = 40) and nonpatients (n = 18). Associations between the interview scores and conceptually relevant external measures consistently supported the construct validity of the instrument. The STiP-5.1 thus offers a brief, relatively user-friendly instrument with generally favorable psychometric properties for the assessment of level of personality functioning of the DSM-5 AMPD. (PsycINFO Database Record

Hutsebaut J ，Kamphuis JH ，Feenstra DJ ，Weekers LC ，De Saeger H ... -  《-》

Development and Preliminary Psychometric Evaluation of a Brief Self-Report Questionnaire for the Assessment of the DSM-5 level of Personality Functioning Scale: The LPFS Brief Form (LPFS-BF).

The Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5; American Psychiatric Association, 2013) alternative model for personality disorders (PDs) introduced a new paradigm for the assessment of PDs that includes levels of personality functioning indexing the severity of personality pathology irrespective of diagnosis. In this study, we describe the development and preliminary psychometric evaluation of a newly developed brief self-report questionnaire to assess levels of personality functioning, the Level of Personality Functioning Scale-Brief Form (LPFS-BF; Bender, Morey, & Skodol, 2011). Patients (N = 240) referred to a specialized setting for the assessment and treatment of PDs completed the LPFS-BF, the Brief Symptom Inventory (BSI; Derogatis, 1975), the Severity Indices of Personality Problems (SIPP-118; Verheul et al., 2008), and were administered the Structured Clinical Interview for DSM-IV Axis I Personality Disorders (SCID-I; APA, 1994; First, Spitzer, Gibbon, & Williams, 1997) and the SCID Axis II Personality Disorders (SCID-II; First, Spitzer, Gibbon, Williams, & Benjamin, 1996). When constrained to a 2-factor oblique solution, the LPFS-BF yielded a structure that corresponded well to an interpretation of Self- and Interpersonal Functioning scales. The instrument demonstrated fair to satisfactory internal consistency and promising construct validity. The LPFS-BF constitutes a short, user-friendly instrument that provides a quick impression of the severity of personality pathology, specifically oriented to the DSM-5 model. Clearly, more research is needed to test its validity and clinical utility.

Hutsebaut J ，Feenstra DJ ，Kamphuis JH 《-》

Semi-structured interview for personality functioning DSM-5 (STiP-5.1): Psychometric evaluation of the Czech version.

The DSM-5 Alternative Model for Personality Disorders introduced a dimensional perspective on personality disorders and their assessment by measuring personality functioning in the following domains: Identity, Self-Direction, Empathy, and Intimacy. This study provides a replication of the psychometric evaluation of the Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1) within a mixed clinical sample and a community sample. The sample consisted of 188 adults: 86 participants from the general population and 102 people from a mixed clinical sample. All participants completed the STiP-5.1 and Level of Personality Functioning Scale-Brief Form (LPFS-BF 2.0). Results showed good internal consistency (McDonald's ω = 0.89-0.94) and promising convergent validity (correlations with LPFS-BF 2.0 above 0.6) of the STiP-5.1. Its scores differentiated participants within the community sample from those in the mixed clinical sample with large effect sizes (rrb = 0.77-0.88). Moreover, the impairment in personality functioning was more pronounced in people with personality disorders than in other psychiatric disorders (medium effect size, rrb = 0.46-0.57), supporting the notion of a continuum of personality functioning impairment. The STiP-5.1 therefore offers an instrument with satisfactory psychometric properties for the assessment of personality functioning both for research and clinical practice.

Heissler R ，Doubková N ，Hutsebaut J ，Preiss M ... -  《-》

[Psychometric Evaluation of the German Version of the Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1)].

The alternative model for personality disorders of the DSM-5 introduced an evidence-based, dimensional concept for the diagnosis of personality disorders. Criterion A, operationalized with the Level of Personality Functioning Scale, differentiates different levels of impairments in personality functioning. The Semi-Structured Interview for Personality Functioning DSM-5 (STiP-5.1) is a valid, reliable, and economic interview for the assessment of Criterion A. However, to date, there is no validated form of the interview in the German language. The aim of this study is the psychometric evaluation of the German version of the STiP-5.1. The validity and reliability of the STiP-5.1 was investigated in a sample of healthy adults (n=55) and inpatients diagnosed with a mental disorder (n=55). Construct validity was evaluated by correlations with questionnaires for the assessment of structural impairment (IPO-16, OPD-SQS), and maladaptive personality traits (SCID-II-PQ). Interrater reliability was investigated in a sub-sample of healthy individuals and inpatients (n=50). With regard to validity, high correlations (r=0.68-0.78) between STiP-5.1- ratings and convergent self-report questionnaires were found. The sub-sample showed good interrater reliability (ICC=0.93). Interviews took 38 min. on average. The German version of the STiP-5.1 provides a valid, reliable and economic interview procedure for the dimensional assessment of personality functioning for research and clinical practice.

Zettl M ，Taubner S ，Hutsebaut J ，Volkert J ... -  《-》

The Level of Personality Functioning Scale-Brief Form 2.0: Update of a brief instrument for assessing level of personality functioning.

Section III of the Diagnostic and Statistical Manual of Mental Disorders (5th ed.) introduced the alternative model of personality disorders that includes assessing levels of personality functioning. Here, we describe the development, preliminary psychometric evaluation and sensitivity to change of a revised brief self-report questionnaire, the Level of Personality Functioning Scale-Brief Form 2.0 (LPFS-BF 2.0). Patients (N = 201) referred to a specialized centre for the assessment and treatment of personality disorders completed the LPFS-BF 2.0, the Brief Symptom Inventory and the Severity Indices of Personality Problems Short Form and were administered the Structured Clinical Interview for DSM-IV Axis I and Axis II Disorders. Internal structure and aspects of construct validity were examined. A subsample of 39 patients also completed the questionnaires after 3 months of inpatient treatment. Confirmatory factor analyses demonstrated better fit for a two-factor solution (interpretable as self-functioning and interpersonal functioning) than for a unidimensional model, though acceptable model fit was evident only after two post hoc modifications. The LPFS-BF 2.0 demonstrated satisfactory internal consistency and promising construct validity. Sensitivity to change after 3 months of treatment was high. The LPFS-BF 2.0 constitutes a short, user-friendly instrument that provides a quick impression of the severity of personality pathology. © 2018 John Wiley & Sons, Ltd.

Weekers LC ，Hutsebaut J ，Kamphuis JH 《-》