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MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 320. — Per cent distribution of beta scores of various groups, based on schooling level of eighth grade. 



When comparison is made between the corresponding groups of eighth-grade schooling 

 (see tables 319 and 320, figures 42 and 43), similar results appear. The foreign-born 

 group at this schooling level no longer surpasses the native-born group, but is not very different 

 from it. The group of officers is sharply separated from the groups of recruits. 



When groups of high-school and of college education are considered (see tables 321 and 

 322, figures 44 and 45) the beta groups are very small indeed and may be disregarded. 

 Officers and recruits at this schooling level are less different in intelligence, but the foreign-born 

 group of recruits is more different from the native born than at lower levels. Numbers of 

 recruits who are college graduates, except the native-born white group, are too small to be 

 significant. The native-born white recruits at this schooling level, however, do just about as 

 well on examination alpha as do officers. This interesting shift is shown more clearly in 

 figures 46 to 48, in which the alpha curves for these two groups are isolated. It may be 

 that the intelligence necessary to graduate from college is requisite in an officer, but that 

 college graduates who for one reason or another find themselves in the ranks are practically no 

 less intelligent than those who become officers. 



IO-, OFFICERS 



White Draft, native Born — ■ 



White Draft, Foreign Born 



negro Draft, northern 



O 25 SO 15 IOO 125 150 



Fio. 44. Distribution of alphascores. These groups contain only those who reported that they were in the fourth year of high school when they 

 eft school. The comparison is then between the intelligence scores of officers, white (native and foreign), and negro (northern) recruits who 

 had had equal school opportunities, i. e., four years of high school. (Groups as well educated as this did not usually get into examination beta.) 



