Psychometric Properties of the Revised McLean Screening Instrument for Borderline Personality Disorder

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Author:
Ye, Edie
Area of Honors:
Psychology
Degree:
Bachelor of Science
Document Type:
Thesis
Thesis Supervisors:
  • Kenneth Levy, Thesis Supervisor
  • Kenneth Levy, Honors Advisor
  • Amy Marshall, Faculty Reader
Keywords:
  • Borderline personality disorder
  • MSI-BPD
  • Clinical Assessment
  • Psychometric properties
Abstract:
Purpose: Borderline personality disorder (BPD) is a debilitating disorder that benefits from screening and accurate diagnosis. The McLean Screening Instrument for BPD (MSI-BPD) is a commonly used and clinically useful 10-item screening measure for BPD. In the current study we evaluated the psychometric properties of a 21-item revised version of the MSI-BPD (the MSI-BPD-R). Method: A mixed clinical and non-clinical sample (N= 217; 84.80% women, Mage=21.82, SD=8.11) was recruited from a community mental health center or identified from a mass screening of undergraduate students. Participants completed questionnaire batteries across three studies, each of which included the MSI-BPD-R. Test-retest reliability, internal consistency, and factor structure were examined. Results: Four underlying factors: Angry Confrontation, Fear of Abandonment, Dysphoric Sense of Self, and Impulsive Appetitive Behavior, captured all 21 items of the MSI-BPD-R. The MSI-BPD-R outperformed the MSI BPD in terms of internal consistency. Conclusion: The MSI-BPD-R has strong psychometric properties and is recommended to be used in community and clinical settings for screening purposes.