Related Experiment Videos
The Borderline Syndrome Index: a validation study using the personality assessment schedule
M J Marlowe1, K O'Neill-Byrne, F Lowe-Ponsford
1Academic Department of Psychiatric, Medical School, Guy's Hospital, London.
Summary
The Borderline Syndrome Index (BSI) shows moderate sensitivity but lacks specificity, questioning its validity as a screening tool for borderline personality disorder. Its scores may be influenced by current symptoms, not just underlying personality traits.
Area of Science:
- Psychiatric diagnostics
- Psychometric validation
- Personality assessment
Background:
- The Borderline Syndrome Index (BSI), developed in the USA, is assessed for its validity and screening capabilities.
- The study compares the BSI against categories of the Personality Assessment Schedule (PAS), developed in the UK.
Purpose of the Study:
- To examine the validity and screening properties of the Borderline Syndrome Index (BSI).
- To evaluate the BSI's utility in identifying categories within the Personality Assessment Schedule (PAS).
Main Methods:
- Case control sampling was employed for patient recruitment.
- Chance-corrected agreement between the BSI and PAS was calculated.
- Screening properties of the BSI were statistically analyzed.
Main Results:
- The BSI demonstrated moderate sensitivity but was found to be non-specific as a screening instrument.
- A significant correlation was observed between BSI questionnaire scores and symptom measures.
Conclusions:
- The findings do not support the overall validity of the BSI for diagnosing borderline personality disorder.
- The BSI is not recommended as a reliable screening instrument due to its limitations.
- Current symptom severity may potentially distort BSI scores, impacting diagnostic accuracy.