These studies confirm the mediating role of intershift-shift recovery in the evolution of adaptive end-of-shift fatigue states to maladaptive persistent fatigue traits. The OFER scale is suggested as a potentially valuable new tool for use in work-related fatigue research.

Unpredictable internal shift rotations, including night duty, which are traditional and typical in nursing, are inimical to maintaining nurses' health. More creative approaches to rostering for nurses working multiple shifts are a necessary step towards reducing wastage from the profession due to chronic work-related fatigue. Younger nurses in particular, may need more support than is currently recognized if they are to be retained within the profession.

The OFER15 measure is a parsimonious scale with robust psychometric properties whose subscales distinguish well between acute fatigue states and chronic fatigue traits. The intershift recovery subscale is unique among published fatigue scales. The OFER15 is suggested as a valuable new instrument for the researchers in the work-related fatigue area, and also as screening instrument in Primary Care.

This study examined the role of schools' psychosocial safety climate (PSC) in teachers' psychological outcomes. We proposed that PSC would moderate the effects of teachers' daily job demands on their fatigue and work engagement, and also the effects of teachers' daily recovery on fatigue and engagement. Sixty‐one Australian school teachers completed a diary that was repeated three times over the course of approximately 8 months. Each diary ran for five consecutive days, measuring daily self‐reports of job demands, recovery, fatigue, and engagement (N = 915 data points), while perceived PSC was measured once per diary. Multilevel analyses indicated that PSC moderated the relationships between job demands and fatigue, as well as job demands and engagement. This suggests that perceived PSC could act as a buffer against deleterious impacts of daily job demands. PSC also moderated the relationships between recovery and fatigue, and recovery and engagement. This indicates that higher levels of perceived PSC in schools could amplify the benefits of daily recovery for teachers. PSC also exerted a main effect on both fatigue and engagement. These results offer insight into the mechanisms by which PSC may act as a buffer to protect worker mental health, and highlight the importance for school management to promote PSC within their organization. Practitioner points Psychosocial safety climate in organizations may buffer workers from the negative psychological outcomes associated with job demands. Psychosocial safety climate in organizations may boost the psychological benefits that workers gain from achieving good daily recovery outside of work.

Coping with psychological stressors adequately is an important requirement for nurses in order to avoid adverse health effects and maintain a long-term career in nursing. Appropriate training of undergraduate nursing students in managing the stresses they are likely to encounter would seem to be an essential requirement for the 21st century. Such training might constitute an important long-term component in overcoming the chronic nurse shortages evident in many countries.