CHAPTER 7. 



RELATION OF INTELLIGENCE RATINGS TO LENGTH OF RESIDENCE IN TTNITED STATES. 



The group of 11,295 foreign-born men included in the white draft (Groups I, II, and III) 

 have been analyzed for the relation of their intelligence ratings to the number of years' residence 

 in the United States as reported on the psychological record card. The composition of this 

 group with respect to the type of examination taken is as follows: 



Tbe results of the Hollerith analysis for this group are shown in tables 219 to 222. The 

 Hollerith code was by separate units for the first five years of residence and by five-year groups 

 thereafter. In these tables, however, the first six years (0-5, inclusive) have been grouped 

 together so that there are four class intervals of approximately five years each. The last class 

 is for all men over 20 years in this country and includes only persons who have been in America 

 since childhood, for the reason that the upper limit of draft ages was 31. 



Table 219. — Variables: Alpha score X years in the United States. Groups I, II, III: White draft, foreign born. 



For men who took alpha only. 



701 



