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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



above. There had also been a revision of the examination which made it easier to obtain 

 ratings of A and B. For discussion of this last point, see Part II, page 342. 



Several studies were made concerning the relationship of intelligence rating to success in 

 the officers' training schools. One of the best of these was made at Camp Lee with data 

 obtained from the class graduating in October, 1918. The results of this study are shown 

 in table 420. Men are classified according to their success in the school. Those who were 

 commissioned immediately upon graduation were put into the first group. In the second group 

 are the men held for one month additional training. In the third group are those held for 

 two months' additional training. The fourth group consists of those who failed at the end 

 of the course, and the fifth group are those dismissed before their course was finished. An 

 examination of the median scores shows that there were differences between the levels of 

 intelligence of these different groups. The difference between the median of 115 in the group 

 of men failing and the median of 131 made by the men commissioned immediately at the end 

 of the course is significant. The relative success of men in the several intelligence groups 

 indicates that the A men have five times as much chance as the C— men of getting commis- 

 sions at the end of the course and nearly seven times as much chance of getting commissions 

 eventually. The B and C+ men have six times as much chance of success as C— men. The 

 D men have practically no chance at all. This relationship between intelligence rating and 

 success is very high when we consider the other qualities besides intelligence which must be 

 considered in deciding whether or not a man is fit to become an officer. 



Table 420. — Relation of intelligence rating to success in officers' training school; 1,072 cases reported from Camp Lee, fifth 



series officers' training school. 



