The draft starkly exposed the poor living conditions of most African-Americans with the Selective Service Boards turning down 46% of the Black men called up on health grounds as compared to 30% of the white men called up.[1] At least a third of the black men in the South called up by the draft boards turned out to be illiterate.[147] Southern Black people fared badly on the Army General Classification Test (AGCT), an aptitude test designed to determine the most suitable role for those who were drafted, and which was not an IQ test.[151] Of the Black men from the South drafted, 84% fell into the two lowest categories on the AGCT.[152] Owing to the high failure rate caused by the almost non-existent education system for African-Americans in the South, the Army was forced to offer remedial instruction for Afro-Americans who fell into the lower categories of the AGCT.[152] By 1945, about 150, 000 Black men had learned how to read and write while in the Army.[152] The poor living conditions in rural America which afflicted both white and Black Americans led the Army to undertake remedial health work as well.