764 MEMOIRS NATIONAL ACADEMY OF SCIENCES. [vol.xv. 



Table 305. — Per cent distribution of total alpha scores made by officers and recruits of various groups. 



Table 306. — Per cent distribution of total beta scores made by recruits of different groups. 



Examination beta, it will be remembered, was given to men unable to read and write 

 readily in English, or who had not reached a given school grade, usually 4, 5, or 6. The 

 proportion of men given beta was naturally very different among southern negroes, for 

 instance, from what it was among native-born white recruits. The graphs showing distribu- 

 tions on alpha and beta are on a per cent basis and appear the same size, but the proportions 

 of each group which went to alpha and to beta are as shown in table 307. 



Table 307. 



When these intelligence distributions are compared with the schooling distributions 

 just shown for these same groups, the following observation may be made: The better 

 educated the group, the better its record on the intelligence examinations; or, equally truly, 

 the better the intelligence rating a group can make, the more education it has obtained. The 

 only point on which this correspondence fails is that the northern negro draft group is better 



