Abstract
The Severity Indices of Personality Problems (SIPP; Verheul et al., 2008) is a popular self-report questionnaire that measures severity of maladaptive personality functioning. Two studies demonstrated the utility of the short form (SIPP-SF) among older adults but validation in clinical settings is lacking. Therefore, we examined the psychometric properties of the SIPP-SF in a large sample of older adult Dutch outpatients (N = 124; age range = 60-85 years, M = 69.8, SD = 5.3). The SIPP-SF domains showed good to excellent internal reliability (Cronbach's α = .75-.91) and effectively discriminated between participants with and without a personality disorder, as assessed with the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II). Convergent validity of the SIPP-SF was examined with instruments for measuring personality pathology among older adults (Informant Personality questionnaire [HAP]; Gerontological Personality Disorders Scale [GPS]). The GPS generally correlated with the SIPP-SF domains in expected directions, with small to large effect sizes. For the HAP, only 1 scale correlated with all SIPP-SF domains. No associations were found between the SIPP-SF and psychiatric symptomatology as measured by the Brief Symptom Inventory (BSI). The SIPP-SF appears to be a promising instrument for assessing maladaptive personality functioning among older adult outpatients.
Original language | English |
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Pages (from-to) | 174-182 |
Number of pages | 9 |
Journal | Journal of Personality Assessment |
Volume | 103 |
Issue number | 2 |
Early online date | 8 Apr 2020 |
DOIs | |
Publication status | Published - 4 Mar 2021 |
Keywords
- DIAGNOSTIC-ACCURACY
- CONSTRUCT-VALIDITY
- PROBLEMS SIPP-118
- DISORDERS
- ADULTS
- CHALLENGES
- FEATURES
- ISSUES