752 MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



Table 289. — Variables: Beta score X schooling. Groups I. II, III: While draft (foreign born) . 

 For men who took beta only, or alpha and beta. 



[ Vol. XV, 



Table 290. — Variables: Score on performance scale examination X schooling. Groups I, II, III: White draft (foreign born). 



For men who took performance scale following alpha, or following beta, or following alpha and beta, or who took 



performance scale examination only. 



