This article describes a psychometric analysis of the trauma practices questionnaire, an instrument designed to assess mental health provider practice patterns with a specific focus on the use of best practice technology with traumatized populations. Using the responses of 888 mental health professionals, an exploratory factor analysis with an oblique rotation was conducted on a twenty-six-item scale, resulting in a seven-factor solution. Based on the results, implications for instrument revisions are discussed, and specifications for future confirmatory factor analyses are delineated. Keywords: exploratory factor analysis; evidence-based practice; trauma practices Over the past two decades, improving mental health practice by developing and disseminating best practice guidelines and empirically investigating clinical treat- ment approaches has been a national priority. Organizations and entities such as the National Institute of Health, the Substance Abuse and Mental Health Service Administration, the National Child Traumatic Stress Network, and the American Academy for Child and Adolescent Psychiatry have allocated considerable resources to the dissemination of empirical evidence to inform the clinical practice patterns of mental health providers who treat adults and children suffering from the effects of trauma exposure. A report by the National Advisory Mental Health Council’s Clinical Treatment and Services Research Workgroup at the National Institute of Health recommended that the National Institute of Mental Health portfolio be expanded in the domains of efficacy, effectiveness, practice, and ser- vice systems research to foster integration of best practice protocols across these fields, and to expedite the implementation of research-based protocols into prac- tice settings. An Exploratory Factor Analysis of the Trauma Practices Questionnaire Ginny Sprang and Carlton Craig Ginny Sprang, PhD, and Carlton Craig, PhD, are associate professors at the University of Ken- tucky in Lexington. © 2007 Lyceum Books, Inc., Best Practices in Mental Health, Vol. 3, No. 2, Summer 2007