I40 REPORT OF THE PSYCHOLOGY COMMITTEE 



"Training Test F deals with hearing. It is designed to 

 train the men to detect and localize faint sounds and to guard 

 them against purely imaginary sounds." 



The several tests referred to above deserve characteriza- 

 tion: 



Test for A is preliminary training in noting and naming 

 various combinations of colored lights. It involves the use 

 of a series of lamps in connection with a keyboard. The 

 chief purposes of the test are to cultivate alertness, accuracy, 

 and speed in reporting observations; to test and improve im- 

 mediate memory and in general those functions which are 

 most important in correctly observing and reporting the com- 

 binations of enemy rocket signals. 



Test B is an adapted form of the army Picture Completion 

 test. It Is presented by means of lantern slides and its pur- 

 pose is to increase the rapidity with which men notice details 

 and detect obscure objects. 



Test C is an adaptation of the army analogies or logical 

 relations test. It also is presented by means of lantern 

 slides and its chief purpose is to increase mental alertness. 

 At the same time it is supposed to improve ability to think 

 and to draw correct inferences. 



Test D deals with estimates of numbers. Groups of men 

 are presented by means of lantern slides and the subject is 

 required to estimate quickly the number of individuals when 

 position, attitude, and background are varied. 



Test E has to do with orientation. It is at once a measure 

 of the man's ability, and a means of training him to hold his 

 directions and to find his way under varied conditions. 



Test F is planned as a measure of ability to detect and 

 localize sounds (whistle and whisper). It is used also to 

 train men to detect and localize sounds in the dark. 



The services of Watson and Bentley were much appre- 

 ciated by the Division, and the tests constitute an interesting 

 contribution to the practical literature on the training of 

 intelligence officers. It is probable also that the test materials 

 will prove convenient and of value in various other types of 

 situation. 



