Severity Indices of Personality Problems (SIPP-118): Development, factor structure, reliability, and validity.

Abstract

This article describes a series of studies involving 2,730 participants on the development and validity testing of the Severity Indices of Personality Problems (SIPP), a self-report questionnaire covering important core components of (mal)adaptive personality functioning. Results show that the 16 facets constituted homogeneous item clusters (i.e., unidimensional and internally consistent parcels) that fit well into 5 clinically interpretable, higher order domains: self-control, identity integration, relational capacities, social concordance, and responsibility. These domains appeared to have good concurrent validity across various populations, good convergent validity in terms of associations with interview ratings of the severity of personality pathology, and good discriminant validity in terms of associations with trait-based personality disorder dimensions. Furthermore, results suggest that the domain scores are stable over a time interval of 14-21 days in a student sample but are sensitive to change over a 2-year follow-up interval in a treated patient population. Taken together, the final instrument, the SIPP-118, provides a set of 5 reliable, valid, and efficient indices of the core components of (mal)adaptive personality functioning.

Favourable outcome of long-term combined psychotherapy for patients with borderline personality disorder: Six-year follow-up of a randomized study

“…This finding is in accordance with a recent prospective cohort study of an 18-month day-hospital MBT programme for patients with severe BPD, which also found that Identity Integration and Selfcontrol had the largest effect sizes of the SIPP 118 domains (Bales et al, 2012). Interestingly, in a Dutch mixed PD sample, levels of Identity Integration and Self-control were significantly lower among patients with four or more PD diagnoses than in patients with fewer than four PD diagnoses (Verheul et al, 2008). Moreover, as these two domains were the only SIPP 118 domains to differ by such PD comorbidity, the results suggest that they are particularly relevant in the differentiation of PD severity.…”

“…The 60 items are directly assigned to five higher-order domains: Self-control, Identity Integration, Relational Capacities, Social Concordance, and Responsibility. Scores range from 1 to 4, with lower scores reflecting more maladaptive levels of personality functioning (Verheul et al, 2008).…”

“…In addition to these traditional outcome variables, UPP includes a measure for the assessment of core components of (mal)adaptive personalitynamely, the Severity Indices of Personality Problems (SIPP 118) (Verheul et al, 2008). This questionnaire covers many of the personality domains conceptualized as core aspects of personality pathology in the alternative model in DSM-5 (Third section) (Bastiaansen, De Fruyt, Rossi, Schotte, & Hofmans, 2013;DSM-5, 2013).…”

Development and Psychometric Properties of the Standardized Assessment of Severity of Personality Disorder (SASPD)

“…While the Standardised Assessment of Personality -Abbreviated Scale (Moran et al 2003) provides a brief and reliable indication of the presence or absence of personality disorder (Bukh et al 2010, Kongerslevet al 2012, it was not designed to assess the severity of the condition. A number of questionnaires have been developed that assess the severity of subtypes of personality disorder (Arntz et al 2003;GiesenBloo et al 2010), or to assess global severity according to other criteria (Livesley, 2006;Verheul et al, 2008;Hopwood et al, 2011;Hutsebaut et al 2015) but there is currently no instrument that assesses severity based on proposed ICD-11 criteria.…”

Entwicklung einer Zwölf-Item-Version des OPD-Strukturfragebogens (OPD-SFK)/ Development of a 12-item version of the OPD-Structure Questionnaire (OPD-SQS)

“…Andere international eingesetzte Fragebögen, wie zum Beispiel der Severity Indices of Personality Problems (Verheul et al 2008), sind mit 118 Items in der Lang-beziehungsweise 60 Items in der Kurzversion bisher deutlich länger.…”