Effect of Assimilation of Work Experience on Growth Satisfaction: Assessment of an Internal Validity Threat Due to Higher Order Needs

Within the context of the job characteristics model, Bottger and Chew (1986) argue that capacity for growth, rather than need for growth, would predict individual differences in growth satisfaction. In three large samples, they show that propensity to assimilate work experience (AWE) has a significant main effect on growth satisfaction, independent of job scope and context satisfaction. By contrast, growth need strength (GNS) has a null main effect and weak interaction effect on growth satisfaction. The present study assesses a possible threat to the internal validity of the Bottger and Chew findings. It examines whether higher order needs, namely growth need strength and needs for achievement, dominance and autonomy actually explain the AWE effect on growth satisfaction. Two samples of managers (N = 440 and N = 708) from the original Bottger and Chew study are used here. Using regression analysis, we show that the AWE effect is not attributable to needs.