368 



THE NEW WORLD OF SCIENCE 



and rapidly from the very superior group to the very inferior 

 group. In fact, the chance that a man rated as A in intelligence 

 will fail is just about the same as the chance that a man who is 

 rated D in intelligence will succeed in the work of the school. 

 Almost all of the A and B groups and fully three-fourths of the 

 C + g rou P pass. Almost all of the inferior or very inferior men 

 fail in the officers' training schools, although a considerable pro- 

 portion succeed in passing the examinations for non-commis- 



ABC+CC-PD- 



Percent 

 Success 



Percent 

 Failure 



Figure 6. The relation of intelligence to success and failure in non- 

 commissioned officers' training schools. 



N.C.O. 



1458 

 Men 



sioned officers. These figures make it clear that if men were 

 admitted to such schools partly on the basis of intelligence a 

 considerable saving could be effected. The rule might reason- 

 ably be made that no men grading below C in intelligence 

 should be admitted to an officers' training school, and similarly 

 that no men grading lower than D in intelligence should be 

 admitted to a non-commissioned officers' school. 



Turning for a moment to an entirely different sort of evi- 

 dence, we have in Fig. 7 the results of officers' ratings com- 

 pared with intelligence ratings. In this instance nearly four 

 hundred men of twelve different companies were rated by their 



