Job characteristics, work-home interference and burnout: testing a structural model in the South African context

The aim of this study was to test a structural model that included job demands and job resources, negative work-home interference (WHI) and burnout (exhaustion, cognitive weariness and cynicism). A cross-sectional survey design was used. Random samples (n = 330) were taken of workers employed in the earthmoving industry in eight provinces of South Africa. Job characteristics (including job pressure, job control and job support) were measured by items that were adapted from the Job Content Questionnaire and a validated questionnaire on experience and evaluation of work. The Survey Work-Home Interaction - Nijmegen was used to measure negative WHI, while the Maslach Burnout Inventory-General Survey and cognitive weariness scale were administered to measure exhaustion, cognitive weariness and cynicism. Structural equation modelling with Amos showed that job demands (e. g. job pressure) and job resources (job control, supervisor support and colleague support) contributed to negative WHI. Negative WHI mediated the relationship between job demands and burnout and partially mediated between job resources and burnout.