The current study construes the relation between job resources (such as job
autonomy, skill utilization, and variety) and mental health as a reciproca
l process. Following conservation of resources theory (S. E. Hobfoll, 1989)
, the author expected job resources to have a positive effect on mental hea
lth. Poor mental health was assumed to impede workers' attempts to maintain
or enhance their job resources either by changing the content of their job
s or attempting to find another (less distressing) job. Longitudinal data f
rom a representative sample of 699 Dutch youth were analyzed with analysis
of variance and covariance structure modeling. The results provided good su
pport for the proposition that job resources and mental health mutually inf
luence each other. Limitations and implications of the study are discussed.