Empirical research on Karasek's job demand–control (JD‐C) model has often failed to demonstrate the predicted interaction effect of high job demands and low job control on measures of strain. It has been suggested that the conceptualization of the control dimension as well as the neglect of workers' individual characteristics in the JD‐C model may be responsible for its relative lack of empirical support. In the current study among 367 Dutch nurses from 18 intensive care units, a more focused measure of control was used. In addition, two individual characteristics (i.e. active coping and need for control) were included as potential moderators in the JD‐C model. The demand‐control interaction effect as predicted by the JD‐C model could not be demonstrated. However, active coping turned out to moderate the interaction between job demands and job control. A misfit between level of control and individual coping style intensified the stress‐enhancing effect of job demands. Further research on the extension of the JD‐C model with personal characteristics is recommended.

The reliability and construct validity of the WEBIC-questionnaire can be considered satisfactory. Furthermore, the questionnaire provides a systematical and detailed coverage of ICU nurses' tasks. In relation to this, the questionnaire is not only useful for scientific purposes but also for practical use.