Testing expectancy theory predictions using behaviorally based measures of motivational effort for engineers

Expectancy theory predictions were tested using a sample of engineers who had been rated on dimensions of work motivation or effort (in contrast to performance) using the behaviorally based rating scales designed by Landy and Guion (1970). It was found that the expectancy model was only weakly upheld for an older (41 or older) age subgroup, while few relationships were observed for a younger (below 41) age group. Also, the motivational behavior scales did not show any enhanced predictability when compared to a more global rating of job performance.