Effects of job demands, control and support on psychological and work-related well- being in a sample of greek blue-collar workers

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The present study re-examined Karasek’s (1979) demand-control model in a relatively homogeneous sample of blue-collar workers in Greece, using a descriptive measure of job demands and a more focused measure of job control, as recommended by Wall, Jackson, Mullarkey & Parker (1996). Both the strain hypothesis and the buffering hypothesis were investigated. Measurements were in the form of a questionnaire which comprised various scales in order to measure stressors (cognitive demands), resources (control, social and technical support) and'psychological and work-related well-being (anxiety, depression, fatigue, GHQ, minor health complaints, job satisfaction). Data were analyzed mainly with hierarchical moderated regression analysis. The findings provided strong support for the strain hypothesis, as job control and support were found to have a direct effect on various outcome variables (fatigue, minor health complaints, job satisfaction). In addition, results indicated partial support for the interactive hypothesis, suggesting that perceived control and social support synergistically buffer the effects of stressors upon strain, in the form of anxiety and psychological distress.

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