Scale Overview & Construct
5-item ultra-brief screening tool for borderline personality disorder (BPD). Each item maps to a DSM-5 BPD criterion. 4-point scale (0–3). Sum score 0–15; cutoff >9 recommended (sensitivity 56%, specificity 92%). AUC-ROC = 0.83.
Purpose & Measurement Objectives
Instrument Specifications
Academic Citation & Instrument Provenance
When referencing this instrument in research, academic theses, or clinical institutional audits, please cite the original author publication:
Governance, Boundaries & Ethical Use
Imported from the OpenScales open item-bank project. This specific digital implementation has not been independently clinically validated by PsiQ — scores are for self-reflection, research, and educational purposes only, and are not a diagnosis.
License: CC BY 4.0 (https://doi.org/10.1186/s12888-020-02807-6). Citation: Jucktrakul, K., Wongpakaran, T., Wongpakaran, N., et al. (2020). Development and validation of a screening instrument for borderline personality disorder (SI-Bord) for use among university students. BMC Psychiatry, 20, 479. https://doi.org/10.1186/s12888-020-02807-6 This is not a diagnostic tool. If you are in crisis or having thoughts of self-harm, please contact a licensed mental health professional or a crisis helpline in your country immediately. Low/Moderate/High bands below reflect this test's own possible score range only (simple thirds) — they are NOT a clinical threshold or population norm. No such cutoff has been published for this instrument.