Abstract
U.S. veterans deployed for the wars in Iraq and Afghanistan completed questionnaires across 2 studies (study 1, N = 1046; study 2, N = 7141) to develop and validate the DRRI-2 WE-SF. Study 1 involved developing the DRRI-2 WE-SF, a 9-item self-report instrument with strong internal consistency (α = .86) and large correlations with the full Warfare Exposure measure (r = .97). In study 2, the DRRI-2 WE-SF again demonstrated high levels of reliability and validity and evidenced high levels of classification accuracy (89.7% correct classification) and significant time savings (all ts > 39; all ps < .05) in comparison to the full measure. The DRRI-2 WE-SF is a psychometrically sound measure of direct exposures to warfare and its consequences. This measure of proximal warfare exposure retains the strong properties of the full measure while significantly reducing completion time. These properties make the DRRI-2 WE-SF a useful tool for efficiently evaluating proximal warfare exposure among individuals who have served in both combat and noncombat roles. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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