The Work Stress Questionnaire (WSQ) - reliability and face validity among male workers

Background The Work Stress Questionnaire (WSQ) was developed as a self-administered questionnaire with the purpose of early identification of individuals at risk of being sick-listed due to work-related stress. It has previously been tested for reliability and face validity among women with satisfying results. The aim of the study was to test reliability and face validity of the Work Stress Questionnaire (WSQ) among male workers. Method For testing reliability, a test-retest study was performed where 41 male workers filled out the questionnaire on two occasions at 2 weeks intervals. For evaluating face validity, seven male workers filled out the questionnaire and gave their opinions on the questions, scale steps and how the items corresponded to their perception of stress at work. Results The WSQ was, for all but one item, found to be stable over time. The item Supervisor considers one's views showed a systematic disagreement, i.e. there was a change common to the group for this item. Face validity was confirmed by the male pilot group. Conclusion Reliability and face validity of the WSQ was found to be satisfying when used on a male population. This indicates that the questionnaire can be used also for a male target group.