Purpose
This paper presents an in-depth examination of the demand–control–support–model (DCS-model). Each hypothesis of the DCS-model
is tested: the main effects of job demands, job autonomy, task variation and social support; the additive effects of job strain,
active learning and iso-strain; and the interactive buffer-effects of job autonomy, task variation and support on job demands.
Methods
Data from a representative cross-sectional sample of 11,099 male and female wage-earners are investigated using log linear
methods. The outcome measures are self-reported persistent fatigue, musculoskeletal complaints and emotional well-being.
Results
There is some support for each of the hypotheses. Quantitative job demands and superior support have the strongest effects.
The job autonomy and buffer hypotheses are only partially supported.
Conclusions
The strong effects of job demands, support, job strain and active learning are suggesting that a policy aimed at improving
psychosocial working conditions should focus on a bearable level of job demands and the quality of social relationships at
work.
Keywords Self-reported health - Job strain - Active learning - Iso-strain - Buffer hypothesis - Log linear