Mediated Effects of Physical Risk Factors, Leader-Member Exchange and Empowerment in Predicting Perceived Injury Risk.

In the context of conservation of resources theory, we examine the indirect (mediated) effects of physical risk factors, leader-member exchange (LMX) and empowerment on perceived injury risk in a heterogeneous sample ( N = 226) of individuals employed in occupations related to production, construction and installation/maintenance. Positioning work role stressors and upward safety communications as two important mediating variables, as predicted, LMX and empowerment demonstrated significant indirect effects on perceived injury risk. Results from our model also provide preliminary evidence that an asymmetrical dualistic process exists in terms of the effect physical risk factors have on perceived injury risk via depletion of both psychological (i.e. role stressors) and physical resources (i.e. physical symptoms). Theoretical and practical implications based on the results of our model are also discussed. Copyright © 2011 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]