Ability, Experience, and Task Difficulty Predictors of Task Performance

摘要

This research investigated aptitude, job and task experience, and task difficulty predictors of several measures of Jet Engine Mechanic (AFS 426X2) task proficiency. All predictors were significant, as was the aptitude X experience interaction. The predictability of proficiency from aptitude decreased among more experienced airmen. Self and supervisory task proficiency ratings and Walk Through Performance Test scores were linked by similar patterns of regression coefficients to predictor variables but were themselves virtually uncorrelated. It was concluded that: (a) person and situational variables predict task proficiency; (b) alternative task proficiency measures may capture different aspects of the total criterion space; and (c) under certain restrictive conditions, enlistment standards may be derived from analysis of situational demand.