584 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 37.— Variables: Alpha score, test 3 X alpha score, test 4- Group X: Special experimental group. 



ALPHA TEST 4. 





Table 38. — Variables: Alpha score, test 3 X alpha score, test 5. Group X: Special experimental group. 



ALPHA TEST 5. 



Table 39. — Variables: Alpha score, test 3 X alpha score, test 6. Group X: Special experimental group. 



alpha test 6. 



