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PTSD: National Center for PTSD

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The UCLA PTSD Index for DSM-IV (UPID) (Pynoos, et al., 1998) is a revision of the Child PTSD Reaction Index: CPTS-RI. It is a 48-item semi-structured interview that assesses a child's exposure to 26 types of traumatic events and assesses DSM-IV PTSD diagnostic criteria. It includes 19 items to assess the 17 symptoms of PTSD as well as 2 associated symptoms (guilt and fear of event's recurring).

Additional Resources

The National Center for Child Traumatic Stress has a power point that can be viewed on administering and scoring the UCLA reaction index (*)


Pynoos, R., Rodriguez, N., Steinberg, A., Stuber, M., & Frederick, C. (1998). UCLA PTSD Index for DSM-IV.

Steinberg, A., Brymer, M., Decker, K., Pynoos, RS. (2004). The UCLA PTSD Reaction Index. Current Psychiatry Reports 6:96-100.

Steinberg, A., Brymer, M. (2008). The UCLA PTSD Reaction Index. In: G. Reyes, J. Elhai, J. Ford (eds.) Encyclopedia of Psychological Trauma, John Wiley & Sons, Ltd., 673-674.

To Obtain Scale

The University of California requires a licensing agreement for the use of the scale. For assistance, contact:

UCLA PTSD Index for DSM-IV: UCLA Trauma Psychiatry Service
300 Medical Plaza
Los Angeles, CA 90095-6968
Phone: (310) 206-8973

Measures 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.

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.