The McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD) is a 10-item self-report screening tool developed by Mary C. Zanarini and colleagues at McLean Hospital in 2003. Each item corresponds to one of the nine DSM-5 diagnostic criteria for borderline personality disorder (BPD), with the paranoia/dissociation criterion assessed by two items. Using a yes/no format, the MSI-BPD achieves 81% sensitivity and 85% specificity at a cutoff score of 7 in the general adult population, with even stronger performance (90% sensitivity, 93% specificity) in individuals aged 25 and younger (Zanarini et al., 2003). Zentake's digital MSI-BPD auto-calculates the total score upon submission.
Each of the 10 items is answered "Yes" (scored 1) or "No" (scored 0). The total score ranges from 0 to 10, representing the number of endorsed BPD criteria.
The recommended clinical cutoff is a score of 7 or higher, which indicates a positive screen for borderline personality disorder and warrants further diagnostic evaluation (Zanarini et al., 2003).
For younger populations (ages 15–25), Zanarini et al. (2003) reported enhanced diagnostic accuracy at the same cutoff of 7 (sensitivity 0.90, specificity 0.93). Chanen et al. (2008) found slightly lower sensitivity (0.68) and specificity (0.75) in an adolescent/young adult sample (ages 15–24), suggesting clinical context matters.
Zentake automatically calculates the total MSI-BPD score upon form submission, immediately identifying positive screens for clinician review.
Step 1: Determine clinical appropriateness. The MSI-BPD is appropriate for adolescents aged 15 and older and adults presenting with emotional instability, impulsivity, unstable relationships, or self-harm behaviors. It is a screening tool, not a diagnostic instrument.
Step 2: Deliver the questionnaire to the patient. With Zentake, send a secure digital link via email, text, or patient portal. The patient completes the 10 yes/no questions on any device, typically in 2–5 minutes.
Step 3: Ensure the patient understands the instructions. Patients respond to each statement about their experiences and behavior patterns with "Yes" or "No." Emphasize that honest responses lead to the most helpful clinical information.
Step 4: Review auto-scored results. Zentake instantly calculates the total score and flags results at or above the clinical cutoff. This eliminates manual counting and ensures consistent scoring.
Step 5: Interpret results and plan next steps. A positive screen (score ≥ 7) should be followed by a comprehensive diagnostic evaluation. The MSI-BPD is a screening instrument — a positive result raises the index of suspicion but does not confirm a BPD diagnosis. Use results to inform referral decisions and treatment planning.
Scoring: Paper requires manual counting of 10 yes/no items. Zentake auto-calculates the total score and flags positive screens instantly.
Completion: Paper forms require in-office completion. Zentake allows patients to complete the screener remotely on any device in 2–5 minutes.
Delivery: Paper forms must be printed and physically distributed. Zentake sends secure links via email, SMS, or patient portal.
Data Storage: Paper forms require physical filing and are vulnerable to loss. Zentake stores all responses in a HIPAA-compliant cloud environment.
Longitudinal Tracking: Comparing paper scores over time requires manual chart review. Zentake automatically tracks score changes across administrations.
Security: Paper BPD screening forms contain sensitive mental health information. Zentake encrypts all data in transit and at rest with HIPAA-compliant protocols.
Integration: Paper results must be manually transcribed into EHR systems. Zentake integrates directly with EMR platforms for seamless data transfer.
Cost: Paper forms incur ongoing printing and labor costs. Zentake eliminates these with a digital-first approach.
What does the MSI-BPD measure?
The MSI-BPD screens for borderline personality disorder by assessing 10 symptoms corresponding to the nine DSM-5 BPD diagnostic criteria. These include emotional instability, impulsivity, identity disturbance, unstable relationships, abandonment fears, self-harm, chronic emptiness, anger problems, and paranoia/dissociation. Zentake digitizes this screening for efficient clinical use.
How do you score the MSI-BPD?
Each of the 10 items is answered Yes (1) or No (0). The total score ranges from 0 to 10. A score of 7 or higher is the validated cutoff for a positive BPD screen (81% sensitivity, 85% specificity). Zentake auto-calculates this score upon form submission.
How long does the MSI-BPD take to complete?
The 10-item yes/no questionnaire takes approximately 2–5 minutes to complete. Zentake's mobile-friendly digital format allows patients to complete it conveniently before their appointment.
Is the MSI-BPD free to use?
The MSI-BPD is freely available for clinical and research use. Zentake offers a free trial that includes the digital MSI-BPD with automated scoring, HIPAA-compliant data storage, and EMR integration.
What age group is the MSI-BPD validated for?
The MSI-BPD is validated for adolescents aged 15 and older and adults. Zanarini et al. (2003) found enhanced accuracy in individuals aged 25 and younger (90% sensitivity, 93% specificity at a cutoff of 7). Translated versions exist in Arabic, Finnish, French, Persian, and Urdu.
Who developed the MSI-BPD?
The MSI-BPD was developed by Mary C. Zanarini, PhD, and colleagues at McLean Hospital, affiliated with Harvard Medical School. It was published in 2003 in the Journal of Personality Disorders.
Who should administer the MSI-BPD?
The MSI-BPD can be administered by any licensed clinician, including psychologists, psychiatrists, social workers, counselors, and primary care providers. It is a self-report screening instrument that requires no specialized training. Zentake handles digital delivery, scoring, and secure storage.
Does a positive MSI-BPD score mean I have BPD?
No. The MSI-BPD is a screening tool, not a diagnostic instrument. A positive screen (score ≥ 7) indicates that further evaluation is warranted. A definitive BPD diagnosis requires a comprehensive clinical assessment, typically including a structured diagnostic interview conducted by a qualified mental health professional.
What is the difference between the MSI-BPD and ZAN-BPD?
The MSI-BPD is a brief 10-item screening tool designed to identify individuals who may have BPD. The Zanarini Rating Scale for BPD (ZAN-BPD) is a more detailed clinician-administered assessment that measures BPD symptom severity over time. The MSI-BPD is best used for initial screening, while the ZAN-BPD is suited for tracking treatment response.
1. Zanarini, M.C., Vujanovic, A.A., Parachini, E.A., Boulanger, J.L., Frankenburg, F.R., & Hennen, J. (2003). A screening measure for BPD: The McLean Screening Instrument for Borderline Personality Disorder (MSI-BPD). Journal of Personality Disorders, 17(6), 568–573.
2. Chanen, A.M., Jovev, M., Djaja, D., McDougall, E., Yuen, H.P., Rawlings, D., & Jackson, H.J. (2008). Screening for borderline personality disorder in outpatient youth. Journal of Personality Disorders, 22(4), 353–364.
3. Melartin, T., Hakkinen, M., Baryshnikov, I., Katila, H., & Isometsa, E. (2019). Screening for borderline personality disorder with the McLean Screening Instrument: A review and critique of the literature. Harvard Review of Psychiatry, 27(6), 395–402.
Last updated: March 2026
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