The growth factors were measured by the following manifest
variables: responsibility, information, feedback, knowledge and
training. It was found that feedback and responsibility, to the
greatest extent, had an effect on work motivation. Information,
knowledge and training had a lesser impact on work motivation,
when comparing the components of the construct growth
factors. However, it should be emphasized that all of these
components were of significant importance for the enhancement
of work motivation among the seasonal workers. Consequently,
the seasonal workers’ work motivation is derived from
intrinsic rewards when experiencing self-control in their work
situation.