“…e.g., Brouha, Fradd, & Savage, 1944;Brouha, Graybiel, & Heath, 1943;Gallagher & Brouha, 1943a, 1943cHeath, Woods, Brouha, Seltzer, & Bock, 1943;Johnson et al, 1942;Johnson, Brouha, & Gallagher, 1943;, the HST was of immediate practical relevance during the Second World War. The U.S. Army implemented the HST at its training and selection centers to classify men into groups with respect to their ability to perform hard physical work and to select those who turned out to "fit" the profile.…”