Abstract: | In this investigation, we report the results of 2 studies designed to (a) conduct confirmatory factor analytic tests of a model of general safety performance with performance ratings from 550 coworker appraisals (Study 1), and (b) examine hypothesized relationships between indicators of breadth and depth of knowledge constructs and confirmed safety performance factors (from Study 1) with training history data and supervisory appraisals for 133 hazardous waste workers in 23 jobs and 4 organizations (Study 2). Confirmatory factor analytic results from Study 1 provided support for a 4-factor model of general safety performance with performance factors labeled Using Personal Protective Equipment, Engaging in Work Practices to Reduce Risk, Communicating Health and Safety Information, and Exercising Employee Rights and Responsibilities. In general, the results from Study 2 supported the hypothesized dominance of depth of knowledge over breadth of knowledge in the prediction of performance with respect to more routine, consistent safety tasks. Issues concerning the general-izability of these factors to other types of work and the human resource management implications of these results are discussed. |