A 154-item safety culture survey (SCS) was administered to the employees of two industrial plants to test a model designed to predict individuals' willingness to "actively care" (AC) for the safety of coworkers. A total of 530 surveys were completed at a mean return rate of 89%. The regression analysis at each site (R 2 = .267 and .466) showed the same four subscales on the SCS (i.e., measures of personal control, group cohesion, extroversion, and reactance) to predict independent variance in employees' reported willingness to AC. Furthermore, a higher percentage of scales hypothesized to predict AC were significantly correlated with AC (i.e., 90 percent) than the scales hypothesized not to predict AC (i.e., 50 percent). Therefore, the results were largely consistent with theory (i.e., our AC model), except for the prominent impact of reactance on AC propensity. Thus, the results showed convergent and divergent validity of the AC model, while also suggesting specific theory refinements.