WHAT PSYCHOLOGY CONTRIBUTED 389 



no data were available. At the request of Captain Bennett 

 U. S. N., Chief of the Training Section, I analyzed the require- 

 ments of the Listeners' School. 



On the basis of that analysis, I elaborated a series of tests for 

 candidates for the Listeners' School and was sent to various train- 

 ing stations to pick students from the enlisted personnel. After 

 correcting the tests from the school experience with the first few 

 quotas, I was able to make a detailed recommendation for the 

 examination of candidates. With the cordial assistance of naval 

 medical officers in the several districts, these testa afforded the 

 Listeners' School a selected student personnel fr,om which 80 per 

 cent, to 95 per cent, of each class passed the course, all without 

 seriously affecting the supply of suitable men for other naval 

 schools. 



Space fails us to describe similarly the psychological problems 

 relating to the intelligence service in the army, the aviation 

 service, the chemical warfare service, for all of which important 

 tasks were undertaken. 



