Introduction
The McLean Screening Instrument for BPD (MSI-BPD), developed by Mary C. Zanarini and others and published in 2003 by the Journal of Personality Disorders, serves as an efficient self-report screening tool within the domain of psychiatry. Associated with McLean Hospital, the instrument consists of exactly 10 items explicitly designed to screen for the presence of DSM-IV borderline personality disorder in clinical and research settings. Functioning as a brief case-finding measure, it suggests which subjects should be evaluated more thoroughly with a comprehensive diagnostic interview. Recognized for its significant academic and clinical impact, the questionnaire has been cited over 1000 times.
This article provides a comprehensive guide to the questionnaire, detailing its straightforward scoring methodology, broad clinical utility, and target demographics. Additionally, it explores the instrument's available international translations, established cutoff scores, and strong psychometric validity to thoroughly support researchers and clinicians in utilizing the tool.
Key features of the McLean Screening Instrument for BPD (MSI-BPD)
Purpose and Use
The MSI-BPD functions as a highly effective screening tool and research instrument to identify potential borderline personality disorder cases. Consequently, clinicians actively use the instrument as a brief case-finding measure under a proprietary license to determine which patients require a deeper, more thorough psychiatric diagnostic interview. Therefore, it significantly streamlines the initial psychiatric evaluation process.
Target Population
The MSI-BPD is validated for use with people of all genders between the ages of 18 and 60, including:
Middle-aged adults (25–44 years)Older adults (45–64 years)Additionally, the clinical assessment practically targets broader demographics, specifically encompassing college or university students, parents, and other associated clinical groups.
Structure
The MSI-BPD questionnaire features a highly efficient design comprising exactly 10 concise questions with a straightforward yes/no (true/false) response format. Consequently, these 10 items directly and comprehensively map onto the nine core DSM-IV criteria for borderline personality disorder. To maximize diagnostic accuracy, the instrument deliberately dedicates two separate questions specifically to assess paranoia and dissociation. Ultimately, the tool systematically addresses multiple critical psychiatric domains by categorizing the content areas into distinct symptomatic presentations. These comprehensively evaluated domains include:
Interpersonal Dynamics: Assessing troubled interpersonal relationships, frantic efforts to avoid abandonment, and pervasive distrustfulness.Behavioral Dysregulation: Evaluating instances of self-harm or suicide attempts, alongside impulsive actions such as eating binges, spending sprees, drinking, and verbal outbursts.Emotional Volatility: Measuring intense anger episodes and overall mood instability.Cognitive and Self-Image Symptoms: Identifying chronic emptiness, severe identity disturbance, and dissociative symptoms or feelings of unreality.Scoring Method
Clinicians find the scoring process remarkably straightforward. First, administrators strictly award 1 point for each endorsed item out of the 10 yes/no (true/false) responses. Therefore, the total score mathematically ranges from 0 to 10. Notably, experts highly recommend a cutoff score of 7 or more items to indicate a positive psychiatric screening. Additionally, the scoring system does not utilize any reverse scoring mechanisms, and the foundational academic article does not report any subscale scores. Thus, this highly efficient scoring method dramatically reduces administrative burden in busy outpatient clinics.
Administration Format
Because it features a concise 10-item structure, patients typically complete the assessment in merely 5 to 10 minutes. Moreover, the tool requires absolutely no specialized training since it is entirely self-administered. Healthcare providers reliably administer the MSI-BPD through various versatile formats. These modern administration formats include:
Paper-based formsDigital (Online) screening platformsIn-person interviewsPhone/Video CallApplication of the McLean Screening Instrument for BPD (MSI-BPD)
Because it is fast, standardized, and widely validated, psychiatric professionals and researchers frequently utilize the MSI-BPD in various settings. Specifically, its main applications include:
Screening: Identifying symptomatic borderline personality disorder patients rapidly in clinical environments to suggest who needs a thorough diagnostic interview.Research: Serving as an effective case-finding instrument and outcome measure in psychiatric clinical trials and psychological research studies.Languages and availability
To support global research, the MSI-BPD is available in several languages:
EnglishSpanishFrenchGermanPortugueseJapaneseBrazilian PortugueseAlthough the questionnaire operates under a proprietary license, it notably remains completely free to use for standard clinical screening and research purposes. Therefore, it significantly boosts diagnostic efficiency in fast-paced research and psychiatric care settings.
Reliability and Validity
Extensive psychometric evaluations consistently confirm that the MSI-BPD operates as a highly reliable and valid diagnostic instrument. Specifically, the tool demonstrates a robust Cronbach's alpha of 0.87. Furthermore, test-retest reliability remarkably shows a Spearman's rho of 0.72 (p < .0001). Item-total correlations successfully ranged from 0.45 to 0.63 (all p < .0001), indicating strong internal consistency.
At the firmly established cutoff score of 7, the instrument impressively yields a sensitivity of 0.81 and a specificity of 0.85. Additionally, Phi coefficients with DIPD-IV criteria ranged from 0.30 to 0.59 (all p < .001). Interestingly, diagnostic efficiency substantially increases in younger subjects aged 25 or below, achieving an outstanding sensitivity of 0.90 and a specificity of 0.93 at the threshold of 7. Ultimately, researchers confidently depend on these metrics to validate their psychiatric research protocols.
Original Validation Study. linkCriterion validation study of MSI-BPD. linkLimitations and Considerations
However, despite its strengths, the MSI-BPD has a few limitations:
Self-report measure: Respondents may be heavily influenced by personal interpretation when answering the questionnaire.Social Desirability Bias: Patients might subconsciously underreport or alter their symptoms due to expectation effects or an innate desire to appear more favorable.Other Versions And Related Questionnaires
Original developers have not published any other versions or adaptations, such as shorter forms or expanded tools, specifically for the MSI-BPD. However, professionals frequently pair it with the Personality Diagnostic Questionnaire (PDQ), which functions as an excellent complementary questionnaire in extensive personality disorder evaluations. Consequently, utilizing these tools together can rapidly yield a more robust clinical patient profile.
Additional Resources
A direct link to the Original MSI-BPD Foundation Study. linkYou can access the questionnaire as a PDF through this linkFor further information regarding the questionnaire, please refer to Mary C. Zanarini (McLean Hospital, Belmont, MA)Related Study. linkFrequently Asked Questions (FAQ)
1. Who can use the MSI-BPD?
Clinicians, researchers, and healthcare providers use the MSI-BPD for men and women between the ages of 18 and 60 to screen for borderline personality disorder.
2. How long does it take to complete the MSI-BPD?
Patients typically take 5 to 10 minutes to complete the MSI-BPD, which makes it highly feasible for rapid use in clinical and research settings.
3. How is the MSI-BPD administered?
Healthcare teams can administer the questionnaire via paper-based forms, digital platforms, in-person interviews, or phone/video call formats—offering unmatched flexibility in usage.
4. Is there any cost to using the MSI-BPD?
The MSI-BPD is free for standard clinical use, although it strictly remains under a proprietary license held by the Journal of Personality Disorders.
A Word from ResRef about McLean Screening Instrument for BPD (MSI-BPD)
The MSI-BPD is a brief 10-item self-report screening tool for DSM-IV borderline personality disorder, demonstrating good sensitivity and specificity in treatment-seeking samples. It shows strong psychometric properties, including Cronbach's alpha of 0.87 and good test-retest reliability. While useful for identifying potential BPD cases for further evaluation, it should not replace comprehensive diagnostic interviews and may be less accurate in community or older adult populations. Consequently, when properly deployed, it dramatically improves the triage process for psychiatric professionals.
References
Soler, J., Domínguez-Clavé, E., García-Rizo, C., Vega, D., Elices, M., Martín-Blanco, A., ... & Pascual, J. C. (2016). Validation of the Spanish version of the McLean screening instrument for borderline personality disorder. Revista de Psiquiatría y Salud Mental (English Edition), 9(4), 195-202. linkMirkovic, B., Speranza, M., Cailhol, L. et al. Validation of the French version of the McLean screening instrument for borderline personality disorder (MSI-BPD) in an adolescent sample. BMC Psychiatry 20, 222 (2020). linkKröger, C., Vonau, M., Kliem, S., & Kosfelder, J. (2010). Screening-Instrument für die Borderline-Persönlichkeitsstörung. Diagnostische Effizienz der deutschen Version des McLean Screening Instrument for Borderline Personality Disorder [Screening measure for borderline personality disorder]. Psychotherapie, Psychosomatik, medizinische Psychologie, 60(9-10), 391–396. linkDias, D. S., & Natividade, J. C. (2024). Brazilian adaptation of the McLean Screening Instrument for Borderline Personality Disorder. Trends in Psychiatry and Psychotherapy, 46, e20220486. linkZanarini, 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. linkPatel, A.B., Sharp, C. & Fonagy, P. Criterion Validity of the MSI-BPD in a Community Sample of Women. J Psychopathol Behav Assess 33, 403–408 (2011). linkZhang H, Lyu Y, Qi A, Wen J and Wang L (2026) Borderline personality disorder in East Asian adolescents: a comprehensive review of research on assessment, etiology, and treatment. Front. Psychiatry 17:1805312. link