620 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 149. — Variables: Alpha score, test 5 X mental age Stan/ord-Binet examination. Group X: Special experimental 



group. 

 STANFORD-BINET MENTAL AGE. 



Table 150. — Variables: Alpha score, test 6 X mental age Stanford-Binet examination. Group X: Special experimental 



group. 

 STANFORD-BINET MENTAL AGE. 



Table 151. — Variables: Alpha score, test 7 X mental age Stanford-Binet examination. Group X: Special experimental 



group. 

 STANFORD-BINET MENTAL AGE. 



