This manual investigates the standardized application and interpretation of the General Aptitude Test Battery (GATB) to assess vocational potential. The Government Printing Office, acting on behalf of the United States Employment Service, provides this technical framework to ensure consistent administration of aptitude testing across diverse labor sectors. The text outlines the psychometric foundations and the specific procedural requirements necessary for evaluating cognitive and motor skills in a professional or educational context.

Experts recognize this document as a foundational technical reference for historical labor market research and psychometric standardization. Readers frequently note the high density of administrative prose and the specialized nature of the testing protocols contained within the text.