A COMPARISON BETWEEN THE EMPIRICAL AND RATIONAL APPROACHES FOR KEYING A HETEROGENEOUS TEST Open PDF Document Details Document Type Technical Report Publication Date Jul 01, 1953 Accession Number AD0019091 Entities People Marvin H. Berkeley Tags Communities of Interest Human Systems DTIC Thesaurus Topics Air Force Air Force Facilities Coefficients Commerce Computations Construction Contrast Education Homogeneity Hypotheses Personality Psychology Scholarships Schools Students Test And Evaluation United States