4. The same experiment was made in still another camp. Officers of 36 different companies picked the ten “best” and the ten “poorest” men in each company. Of the “poorest,” 62.22 per cent. tested below C− and only 3.06 per cent. above C+. Of the “best,” 38 per cent. tested above C+ and only 9.72 per cent. below C−. According to this investigation, a man below C− is 6.4 times as likely to be “poorest” as to be “best.” A man above C+ is 12.5 times as likely to be “best” as to be “poorest.” A man rating A is 62 times as likely to be “best” as to be “poorest.” A man rating D− is 29.3 times as likely to be “poorest” as to be “best.” 5. Where commissioned officers are selected on the basis of trying out and “survival of the fittest” it is ordinarily found that about 80 per cent. are of the A or B grade, and only about 5 per cent. below the C+ grade. Of non-commissioned officers chosen by this method, about 75 per cent. are found to grade A, B, or C+, and only 5 per cent. below C. Moreover, there is a gradual rise in average score as we go from privates up through the ranks of privates first class, corporals, sergeants first class, O. T. S. candidates, and commissioned officers. This is seen in the following table: ═══════════════════════╤═══════════════════════════════════════════════ │ PER CENT. EARNING EACH LETTER RATING ───────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬───── Various Groups (Whites)│D− or│ │ │ │ │ │ │A and │ E │ D │ C− │ C │ C+ │ B │ A │ B 8,819 Commissioned │ │ │ │ │ │ │ │ Officers │0.0 │ 0.01│ .25│ 2.92│13.8 │34.6 │48.4 │83. 9,240 O.T.S. Candidates│0.0 │ 0.14│ .98│ 6.16│19.5 │36.4 │36.8 │73.2 3,393 Sergeants │0.0 │ 1.05│ 4.05│14.2 │27.3 │32.5 │20.9 │53.4 4,023 Corporals │0.0 │ 1.33│ 7.33│20.33│31.3 │26. │13.7 │39.7 81,114 Literate │ │ │ │ │ │ │ │ Privates │0.22 │10.24│21.48│28.79│20.48│12.38│ 6.37│18.75 10,803 Illiterate │ │ │ │ │ │ │ │ Privates │7.8 │41.16│29.11│14.67│ 4.43│ 1.95│ .52│ 2.47 ───────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴───── 6. Experience shows that “D” candidates admitted to Officers’ Training Schools almost never make good, and that the per cent. of elimination among the “C−” and “C” students is several times as high as among “A” students. For example, in one of the Fourth Officers’ Training Schools 100 per cent. of the “D” men were eliminated as unsatisfactory, 55 per cent. of the “C−” men, 14.8 per cent. of the “B” men, but only 2.7 per cent. of the “A” men. In another Fourth Officers’ Training School 76.2 per cent. of the men rating below C were eliminated in the first six weeks, 51.5 per cent. of the “C” men, and none at all of the “A” or “B” men. These findings are typical.