Journal
JOURNAL OF WORKPLACE BEHAVIORAL HEALTH
Volume 29, Issue 4, Pages 333-353Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/15555240.2014.965824
Keywords
chronic stress; confirmatory factor analysis; emergency medical services; exploratory factor analysis; scale development; workplace stress
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Funding
- National Registry of EMTs (NREMT)
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This study validates an instrument assessing work-related chronic stress in emergency medical services (EMS) personnel. The instrument was distributed to a systematic probability sample of EMS personnel (N = 1633). Exploratory factor analysis revealed a two-factor, 34 item solution (Kaiser-Meyer-Olkin = .943, chi(2) = 23344.38, df = 561, p <= .001). Confirmatory factor analysis suggested a two-factor, 20 item solution (chi(2) = 632.67, df = 168, p < .001, root mean square error of approximation = .06, comparative fit index = .92, Tucker-Lewis Index = .91, standardized root mean square residual = .04). The factors demonstrated good internal reliability as well as acceptable convergent, discriminant, and predictive validities. Chronic workplace stress may lead to psychological distress; this validation contributes to the tools available to assess the health and well-being of EMS providers.
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