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Updated: Jan 23, 2026

The Social Dimension of Stress: Experimental Manipulations of Social Support and Social Identity in the Trier Social Stress Test
Published on: November 19, 2015
The Connectedness of Mental Health Providers Referring Patients to a Treatment Study for Post-Traumatic Stress: A
A Rani Elwy1,2, Bo Kim3,4, Dorothy N Plumb5
1Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, USA. rani_elwy@brown.edu.
Abstract:
We conducted a process evaluation in the context of a Hybrid Type 1 randomized controlled trial testing two treatments for post-traumatic stress, using a web-based social network survey and semi-structured interviews to illustrate the relationship between providers' influence and likelihood of referring patients to the RCT. Providers with high indegree centrality (designated by other providers as someone they seek information from) were significantly more likely to refer patients to the RCT, and serve as an influence to others' referral behavior. Interviews provided additional data to consider for future studies aimed at increasing the uptake of evidence-based practices.
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