Proposal for Evaluating Workers’ Work Characteristics – Case Study on Business Machinery Production Line –

The General Aptitude Test Battery (GATB) is widely used to evaluate a subject’s cognitive ability for the purpose of selecting appropriate employment. The results of the GATB have been used to place staff in departments ranging from clerical departments to assembly lines. However, at actual manufacturing and assembly sites, workers receive mixed evaluations of “slow work” and “fast work” from the site administrators even though they all have high GATB scores for their jobs. In this study, with the aim of improving job design and employment selection, we do a detailed analysis of the existing GATB method of evaluating work characteristics and worker capacities. We conduct inspection ratings to measure each worker’s ability to adjust their working speeds and analyze the relationship between the GATB score and the worker evaluations. Next, we discover specific motions that explain the evaluation of workers by analyzing worker motions during the GATB. Lastly, we propose a method of determining whether an employee can work quickly in the field.