The significant others' responses to trauma scale (SORTS): applying factor analysis and item response theory to a measure of PTSD symptom accommodation.

Autor: Thompson-Hollands J; Behavioral Science Division, National Center for PTSD at VA Boston Healthcare System, Boston, MA, USA.; Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA., Lee DJ; Behavioral Science Division, National Center for PTSD at VA Boston Healthcare System, Boston, MA, USA.; Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA., Allen ES; Department of Psychology, University of Colorado Denver, Denver, CO, USA., Pukay-Martin ND; Trauma Recovery Center, Cincinnati VA Medical Center, Cincinnati, OH, USA., Campbell SB; VA Puget Sound Health Care System, Seattle, WA, USA.; Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA., Chard KM; Trauma Recovery Center, Cincinnati VA Medical Center, Cincinnati, OH, USA.; Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA., Renshaw KD; Department of Psychology, George Mason University, Fairfax, VA, USA., Sprunger JG; Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA., Birkley E; Department of Psychiatry and Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH, USA., Dondanville KA; Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA., Litz BT; Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA.; Massachusetts Veterans Epidemiological Research and Information Center, VA Boston Healthcare System, Boston, MA, USA.; Department of Psychological and Brain Sciences, School of Arts & Sciences, Boston University, Boston, USA., Riggs DS; Department of Medical and Clinical Psychology and Center for Deployment Psychology, Uniformed Services University of the Health Sciences, Bethesda, MD, USA., Schobitz RP; Department of Behavioral Health, Brooke Army Medical Center, Joint Base San Antonio, Fort Sam Houston, TX, USA.; Commissioned Corps Headquarters, US Public Health Service, North Bethesda, MD, USA., Yarvis JS; Department of Behavioral Health, Carl R. Darnall Army Medical Center, Fort Sam Houston, TX, USA.; Tulane University, New Orleans, LA, USA., Young-McCaughan S; Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.; Research and Development Service, South Texas Veterans Health Care System, San Antonio, TX, USA., Keane TM; Behavioral Science Division, National Center for PTSD at VA Boston Healthcare System, Boston, MA, USA.; Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA., Peterson AL; Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.; Research and Development Service, South Texas Veterans Health Care System, San Antonio, TX, USA.; Department of Psychology, University of Texas at San Antonio, San Antonio, TX, USA., Monson CM; Department of Psychology, Toronto Metropolitan University, Toronto, Canada., Fredman SJ; Department of Human Development and Family Studies, The Pennsylvania State University, University Park, PA, USA.
Jazyk: angličtina
Zdroj: European journal of psychotraumatology [Eur J Psychotraumatol] 2024; Vol. 15 (1), pp. 2353530. Date of Electronic Publication: 2024 Jun 05.
DOI: 10.1080/20008066.2024.2353530
Abstrakt: Background: Symptom accommodation by family members (FMs) of individuals with posttraumatic stress disorder (PTSD) includes FMs' participation in patients' avoidance/safety behaviours and constraining self-expression to minimise conflict, potentially maintaining patients' symptoms. The Significant Others' Responses to Trauma Scale (SORTS) is the only existing measure of accommodation in PTSD but has not been rigorously psychometrically tested. Objective: We aimed to conduct further psychometric analyses to determine the factor structure and overall performance of the SORTS. Method: We conducted exploratory and confirmatory factor analyses using a sample of N  = 715 FMs (85.7% female, 62.1% White, 86.7% romantic partners of individuals with elevated PTSD symptoms). Results: After dropping cross-loading items, results indicated good fit for a higher-order model of accommodation with two factors: an anger-related accommodation factor encompassed items related largely to minimising conflict, and an anxiety-related accommodation factor encompassed items related primarily to changes to the FM's activities. Accommodation was positively related to PTSD severity and negatively related to relationship satisfaction, although the factors showed somewhat distinct associations. Item Response Theory analyses indicated that the scale provided good information and robust coverage of different accommodation levels. Conclusions: SORTS data should be analysed as both a single score as well as two factors to explore the factors' potential differential performance across treatment and relationship outcomes.
Databáze: MEDLINE