The significant others’ responses to trauma scale (SORTS): applying factor analysis and item response theory to a measure of PTSD symptom accommodation by Johanna Thompson-Hollands, Daniel J. Lee, Elizabeth S. Allen, Nicole D. Pukay-Martin, Sarah B. Campbell, Kathleen M. Chard, Keith D. Renshaw, Joel G. Sprunger, Erica Birkley, Katherine A. Dondanville, Brett T. Litz, David S. Riggs, Richard P. Schobitz, Jeffrey S. Yarvis, Stacey Young-McCaughan, Terence M. Keane, Alan L. Peterson, Candice M. Monson, Steffany J. Fredman

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