590 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



Table 55. — Variables: Beta score, test 3 X alpha score, test 4. Group X: Special experimental group. 



ALPHA TEST 4. 



Table 56. — Variables: Beta score, test 4 X alpha score, test 4. Group X: Special experimental group. 



ALPHA TEST 4. 



Table 57. — Variables: Alpha score, test 4 X beta score, test 5. Group X: Special experimental group. 



BETA TEST 5. 



