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The MAYSI-2 was developed by Thomas Grisso, Ph.D. and Richard Barnum, M.D., at the University of Massachusetts Medical School during the 1990s with assistance from the William T. Grant Foundation.  It was made available in 2000 after sufficient research had been done to establish initial reliability and validity.  Since 2000, technical assistance for use of the MAYSI-2 nationwide has been provided by the John D. and Catherine T. MacArthur Foundation’s support of the National Youth Screening and Assessment Project (NYSAP) at the University of Massachusetts Medical School.

The MAYSI-2 is a paper-and-pencil self-report inventory of 52 questions designed to assist juvenile justice facilities in identifying youths 12 to 17 years old who may have special mental health needs. Youths circle YES or NO concerning whether each item has been true for them "within the past few months." Youths read the items themselves (5th grade reading level) and circle the answers. Administration takes about 10 to 15 minutes and scoring requires approximately 3 minutes. The MAYSI-2 is available in both English and Spanish as well as in software form. The MAYSI-2 manual can be purchased from our publisher, Professional Resource Press. The MAYSI-2 web-based software, called Web MAYSI-2, is available for purchase from Orbis Partners ( or (888)682-7720). Please note: Web MAYSI-2 users must already own or purchase a MAYSI-2 manual before they can use the Web MAYSI-2.

MAYSI-2 Implementation

MAYSI-2 References


MAYSI-2 Research Review

This review identifies all published research reports and dissertations through September 2011 that have evaluated or used the Massachusetts Youth Screening Instrument-Version 2 (MAYSI-2).  The review describes the results of studies using the  MAYSI-2 to examine demographic groups, the psychometric properties of the tool, correlations with similar measures, and the relation of MAYSI-2 scale scores to behavioral, clinical and offense characteristics of young people admitted to juvenile justice programs.  The review also offers cautions for clinical and research use of the instrument, as well as suggestions for future research that could improve clinical use of the MAYSI-2 in mental health screening in juvenile justice settings.    

MAYSI-2 Reliability & Validity Research Studies

Substantial research supports the reliability and validity of the MAYSI-2 when used in the settings for which it was intended, on the target populations for which it was developed, and administered in the manner recommended by the authors.  The link below offers a compilation of research studies that have been performed using the MAYSI-2 in a variety of settings and with a variety of populations.  As with any psychological instrument, the reliability and validity will vary depending on how, where, and with whom the measure is used.

MAYSI-2 Registration

After purchasing a MAYSI-2 manual, one must register your manual and facility with NYSAP in order to use the MAYSI-2 for unlimited cases.  To register your MAYSI-2 manual, please fill out the form located at the front of the MAYSI-2 User's Manual and Technical Report. After you have completed the form, please fax it to NYSAP at (508) 856-6805. You must complete the entire form and sign and date on the signature of user line located at the bottom of the form.  A copy of the form will then be returned to you signed by our NYSAP Project Manager.  Please keep a copy of the form as it is proof that you have registered your MAYSI-2 manual.  

Once you have registered your manual, then you are allowed to photocopy the MAYSI-2 Questionnaire and Scoring Forms; however, you are not allowed to photocopy the MAYSI-2 manual. You are also not allowed to distribute the MAYSI-2 forms in any way, or to put the forms on the internet. Failure to register any facility that uses the MAYSI-2 is a violation of the copyright.


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If you have any questions, please contact us by email or by telephone (508-856-8564).