WHAT PSYCHOLOGY CONTRIBUTED 367 



in intelligence among men, they went right to the practical point 

 by asking the psychologist what relation intelligence has to the 

 ways of using men in the army and to general military value. 

 Luckily it was not difficult to answer this question definitely 

 and satisfactorily and that not by the statement of some 

 psychologist's opinion but by the presentation of results of 

 measurements made in the army itself and exhibited in their 

 relations to the judgments of experienced officers. A number 

 of pictures of these results will enable the reader to grasp 

 quickly the significant points. 



ABC+CC-D 



Percent 

 Success 



Percent 

 Failure 



(XTC. 



1375 

 Men 



Figure 5. The relation of intelligence to success and failure in of- 

 ficers' training schools. 



Figures 5 and 6 indicate the relation of intelligence to 

 success and failure in officers' training camps and in non- 

 commissioned officers' training camps. Again, it should be 

 emphasized that the students in these camps had been admitted 

 prior to psychological examination and practically without 

 reference to their intelligence. The psychological ratings were 

 obtained and subsequently were compared with the records of 

 success and failure in the schools. It is notable that in both 

 types of school, the proportion of failures increases steadily 



