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The Los Angeles Symptom Checklist: A Self Report Measure of Posttraumatic Stress Disorder

Central Michigan University

Daniel W. King

Central Michigan University

Gregory Leskin

West Los Angeles Veterans Affairs Medical Center Brentwood Division

David W. Foy

Graduate School of Education and Psychology Pepperdine University

A series of inquiries was conducted on the psychometric properties of the Los Angeles Symptom Checklist (LASC), a self-report measure of Posttraumatic Stress Disorder (PTSD) and associated features. Data were drawn from various samples of individuals who completed the LASC in prior studies: Vietnam veterans (n = 300), battered women (n = 123), adult survivors of child sexual abuse (n = 142), maritally distressed women (n = 36), psychiatric outpatients (n = 105), and high-risk adolescents (n = 168). The instrument was shown to possess high internal consistency (alphas ranging from .88-.95) and test-retest reliability (coefficients of .90 and .94 with a 2-week interval), to be dominated by a strong PTSD first factor, and to demonstrate acceptable levels of convergent validity. Normative information is provided for various samples, including help-seeking male combat veterans, help-seeking females, and high-risk adolescents. As a self-report PTSD assessment device, the LASC has potential for use with various trauma groups.

Assessment, Vol. 2, No. 1, 1-17 (1995)
DOI: 10.1177/1073191195002001001


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