In another camp 765 men of a regular infantry regiment, who had been with their officers for several months, were graded by their officers in five classes, according to their practical military value. Seventy-six of these men were rated either A or B by the Alpha test; all but nine of these had been graded “one” and “two” by their officers, and none of them had been placed in the lowest grade. Out of 238 of these soldiers who scored D or D, _minus_, in the psychological test, all but eight had been placed in the three lowest grades by their officers. The psychological ratings and the ratings of the company commanders were identical in 49.5 per cent. of all cases. In 88.4 per cent. of the cases the agreement was within one step, and in only seven tenths of 1 per cent. was there a disagreement between the psychological test results and the officers’ ratings of more than two steps. Here is another comparison. Sixty company commanders each named his ten best and ten poorest privates. Without any knowledge on the part of the psychological examiners in this or in any other of the comparative tests as to the ratings the officers had given the men, the Alpha gave the grade of D or D, _minus_, to 57.5 per cent. of those picked as the poorest and placed all but a fractional percentage of 1,118 men in the same classes in which they had been placed by their officers on the basis of observation and experience. Those who failed in the Group tests were given individual attention by the clinical psychologist. The examination here was frequently by the Stanford Revision of the Binet test or by the Yerkes-Bridges Point Scale. For men who could not understand the instructions and the language necessary for taking these two tests a series of specially devised performance tests, consisting chiefly of picture puzzles, cubes, squares, crescents, and other forms cut from wood, were provided. The assumption was that a man who has not intelligence enough to place a triangular block in a perfectly obvious triangular hole, or to piece together the six or seven parts which, when properly assembled, make up the figure of a man or a ship is so hopelessly deficient mentally as to be not only of no value, but a positive detriment to the Army. In many instances fully grown men with the mentality of children seven or eight years old were thus weeded out from among the recruits who had successfully passed the physical tests and been inducted into the service. Men making the D, _minus_, or E score in either the Alpha or the Beta tests were graded as of very inferior intelligence; D, _minus_, men were held to be fit for regular service but the E men were recommended for service in the development battalions or for discharge.