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Confirmatory factor analyses suggest that the latent structure of PTSD appears to consist of four distinct symptom clusters rather than the three-cluster structure found in DSM-IV. The B (reexperiencing), C (avoidance/numbing) and D (hyperarousal) criteria are also reviewed. Empirical literature regarding the utility of the A2 criterion indicates that there is little support for keeping the A2 criterion in DSM-5. With regard to A1, the review considers: (a) whether A1 is etiologically or temporally related to the PTSD symptoms (b) whether it is possible to distinguish "traumatic" from "non-traumatic" stressors and (c) whether A1 should be eliminated from DSM-5. Most of this work has focused on Criteria A1 and A2, the two components of the A (Stressor) Criterion. This measure was created by staff at VA's National Center for PTSD.This is a review of the relevant empirical literature concerning the DSM-IV-TR diagnostic criteria for PTSD. Psychometric properties of the Life Events Checklist.
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Gray, M., Litz, B., Hsu, J., & Lombardo, T. Instrument available from the National Center for PTSD at References (LEC for DSM-IV) The Life Events Checklist for DSM-5 (LEC-5). Weathers, F.W., Blake, D.D., Schnurr, P.P., Kaloupek, D.G., Marx, B.P., & Keane, T.M.
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Response: Happened to me Witnessed it Learned about it Part of my job Not sure Doesn't apply.Item: Natural disaster (for example, flood, hurricane, tornado, earthquake).Interview: to establish if Criterion A is met.Extended self-report: to establish worst event if more than one event occurred.Standard self-report: to establish if an event occurred.Three formats of the LEC-5 are available: The LEC-5 is often used in combination with other measures (e.g., CAPS-5, PCL-5) for the purpose of establishing exposure to a PTSD Criterion A traumatic event. The LEC-5 does not yield a total score or composite score. Respondents indicate varying levels of exposure to each type of potentially traumatic event included on a 6-point nominal scale, and respondents may endorse multiple levels of exposure to the same trauma type. There is no formal scoring protocol or interpretation per se, other than identifying whether a person has experienced one or more of the events listed. The LEC-5 is intended to gather information about the potentially traumatic experiences a person has experienced. Given the minimal revisions from the original version of the LEC, few psychometric differences are expected. Psychometrics are not currently available for the LEC-5. Response category "Part of my job" was added.Item 15 "Sudden, unexpected death of someone close to you" was changed to "Sudden accidental death".However, the LEC did not establish that the respondent has experienced an event with sufficient severity to meet DSM-IV criteria for a traumatic exposure.Ĭhanges between the original LEC and LEC-5 are minimal: The original LEC also demonstrated convergent validity with measures assessing varying levels of exposure to potentially traumatic events and psychopathology known to relate to traumatic exposure. The LEC demonstrated adequate psychometric properties as a stand-alone assessment of traumatic exposure, particularly when evaluating consistency of events that actually happened to a respondent.
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The LEC was originally developed concurrently with the Clinician-Administered PTSD Scale for DSM-IV (CAPS) to be administered before the CAPS. The LEC-5 assesses exposure to 16 events known to potentially result in PTSD or distress and includes one additional item assessing any other extraordinarily stressful event not captured in the first 16 items. The Life Events Checklist for DSM-5 (LEC-5) is a self-report measure designed to screen for potentially traumatic events in a respondent's lifetime. VA Software Documentation Library (VDL).Clinical Trainees (Academic Affiliations).War Related Illness & Injury Study Center.