204 CONTEMPORARY SCIENCE 



men reported as "unteachable" and men designated by 

 their officers as "poorest" from the standpoint of military 

 usefulness. 



The comparison of negro with white recruits reveals 

 markedly lower mental ratings for the former. A further 

 significant difference based on geographic classification has 

 been noted in that the northern negroes are mentally much 

 superior to the southern. 



The relation between officers' judgments of the value 

 of their men and intelligence ratings is exhibited in some- 

 what different ways by Figs. 5 to 7. Thus the median 

 .scores for five groups of privates arranged in order of 

 military value from "very poor" to "best" are presented 

 in Fig. 5. The total number of individuals in the group 

 is 374. The men were selected from twelve different 

 companies, approximately thirty men in each company 

 being ranked by an officer in serial order from "best" to 

 "poorest." The rank order for each company was then 

 correlated by the psychological examiner with the rank 

 order supplied by psychological examination. In seven of 

 the twelve companies the correlations ranged from .64 to 

 .75. The average correlation was .536. These correla- 

 tions are high, considering the large number of factors 

 which may influence a man's value to the service. 



The median score for the "very poor" group of Fig. 5 

 is 28 points in an examination whose maximal score is 

 212 points. By contrast with this, the median score of 

 the "best" group of privates is 99 points. 



The commanding officers of ten different organizations, 

 representing various arms of the service, in a certain camp 

 were asked to designate (i) the most efficient men in their 

 organizations, (2) the men of average ability and (3) 

 men so inferior that they are "barely able" to perform 

 their duties. 



The officers of these organizations had been with their 

 men from six to twelve months and knew them exception- 

 ally well. The total number of men rated was 965, about 



