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PTSD: National Center for PTSD

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Mississippi Scale for Combat-Related PTSD (M-PTSD)


Mississippi Scale for Combat-Related PTSD (M-PTSD)

Keane, Caddell, & Taylor, 1988


The M-PTSD is a 35-item self-report measure that assesses combat-related PTSD in veteran populations. Items sample DSM III symptoms of PTSD and frequently observed associated features (substance abuse, suicidality, and depression). Respondents are asked to rate how they feel about each item using 5-point, Likert-style response categories. Ten positively framed items are reversed scored and then responses are summed to provide an index of PTSD symptom severity which can range from 35-175. Cutoff scores for a probable PTSD diagnosis have been validated for some populations, but may not generalize to other populations.

Sample Item

"Before I entered the military I had more close friends than I have now." (Respondents are asked to rate item from 1 = "not at all true" to 5 = "extremely true.")


A ten item form, Miss-10, is available. (Hyer et al., 1991). M-PTSD-DS is an adapted version appropriate for Desert Storm War Zone personnel. Also, a parallel version exists for administration to spouses/partners (Taft et al., 1999).

There is also the Revised Civilian Mississippi for civilian samples.


Hyer, L., Davis, H., Boudewyns, P., & Woods, M. G. (1991). A short form of the Mississippi Scale for Combat-Related PTSD. Journal of Clinical Psychology, 47, 510-518.

Keane, T. M., Caddell, J. M., & Taylor, K. L. (1988) Mississippi Scale for Combat-Related Posttraumatic Stress Disorder: three studies in reliability and validity. Journal of Consulting and Clinical Psychology, 56, 85-90.

Taft, C. T., King, L. A., King, D. W., Leskin, G. A., & Riggs, D. S. (1999). Partners' ratings of combat veterans' PTSD symptomatology. Journal of Traumatic Stress, 12, 327-334.

Additional Reviews

Orsillo (2001) (PDF) p. 274.

Orsillo, Susan M. (2001). Measures for acute stress disorder and posttraumatic stress disorder. In M.M. Antony & S.M. Orsillo (Eds.), Practitioner's guide to empirically based measures of anxiety (pp. 255-307). New York: KluwerAcademic/Plenum. PILOTS ID 24368

To Obtain Scale

This measure was created by staff at the VA National Center for PTSD. To obtain this scale complete the online request form.

Measure availability: Information on measures is available to everyone. However, the assessment tools themselves can only be distributed to qualified mental health professionals and researchers. We maintain measures developed by affiliated staff of the National Center for PTSD.

See Assessment Measures Specifically for VA Providers and Staff to download the Mississippi Scale.

Date this content was last updated is at the bottom of the page.

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Where to Get Help for PTSD

Using the PILOTS database for Assessment Information
The PILOTS database is the largest electronic index to the world's literature on traumatic stress.

The National Center for PTSD does not provide direct clinical care, individual referrals or benefits information.

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