634 MEMOIRS NATIONAL ACADEMY OF SCIENCES. [vol.xv. 



Table 155. — Coefficients of correlation for all possible pairs of variables dealt with. For method of calculation see text. 



Alpha tests: 



iV/".'.'.'.'.'.'".'.'.'.'".''.'.'. 



3 



4 



5 



6 



7 



8 



Beta tests: 



1 



2 



3 



4 



5 



7""' .'." yji'.'.'.'.'.'.'.'. 



Stanford-Bmet mental age. 



Alpha total score 



Beta total score 



Alpha test. 



. 7304 

 .5897 

 .7093 

 . 6868 

 . 6802 

 .8697 

 .6584 



.4213 

 ;5764 

 . 5920 

 . 6286 

 . .56(10 

 . 5428 

 . 5536 

 .6810 

 .7729 

 .6900 



.7304 



.7455 



.7915 



,7634 



.7730 



.735 



.7425 



.4437 

 .5979 

 6591 



. 6823 

 .6425 

 .5673 

 . 5228 

 . 77SS 

 .8445 

 .7236 



.5S97 

 .7455 



.8055 

 .7543 

 .6129 

 .6714 

 .7750 



.3641 

 .4477 

 .5269 

 .6795 

 .5982 

 .5451 

 .5827 

 .6932 

 .8609 

 .695' 



.7093 

 .7915 

 .8055 



: 



.8343 

 .6814 

 .7304 

 .8608 



.4274 

 .4948 

 .5590 

 .6422 

 .5455 

 .5595 

 .5412 

 . 8240 

 .9373 

 .6831 



.6S62 

 .7634 

 .7543 

 .8343 



.6736 

 .7784 

 .8227 



.4091 

 .5366 

 .5544 

 . 6388 

 . 5859 

 .5589 

 .4972 

 .7219 

 .8974 

 .6919 



.6802 

 .7730 

 .6129 

 .6814 

 .6736 



.7036 

 .6930 



.4294 

 .5978 

 . 61146 

 . 61X13 

 .6055 

 .5273 

 . 6039 

 .7109 

 . 8405 

 .7369 



.73o' 

 .6714 



.7304 



.7784 



.7036 



! 



.6718 



.3231 

 .4024 

 . 5589 

 . 6276 

 . 5568 

 . 4890 

 .5491 

 .7261 

 .8769 

 .6814 



.6584 

 .7425 

 .7750 

 .8608 

 .8227 

 .6930 

 .6718 

 1 



.3670 

 .4585 

 .5761 

 .6663 

 .5804 



.we 



.5379 

 .7158 

 .9289 

 .7001 



Beta test. 



.4213 

 .4437 

 .3641 



.4274 

 .4091 

 .4294 

 .4231 

 .3670 



1 



.4844 

 .49o7 

 .4795 

 . 4082 

 .50il 

 . 50o() 

 . 4650 

 .4460 

 .6190 



.5' 



.5979 



.4477 



.49-.S 



,53o6 



.59r8 



. 40i4 



.45*5 



.4844 



.6272 

 .5493 

 .5187 

 .5702 

 .5849 

 . 610,8 

 . 4373 



. 5920 

 .6591 

 .5269 

 .5o90 

 .5544 

 .6O46 

 . 55.89 

 .5761 



.4957 



.6272 



1 



.6796 



.6465 



.5878 



.5764 



.6140 



.6176 



.8215 



.62S6 

 .6823 

 .6795 

 .6422 

 .63»8 

 .60u3 

 .6276 

 .6663 



.4795 

 .5493 



, 7520 

 .6438 

 .5634 

 .6571 

 .6418 

 . 8876 



.5600 

 .6425 

 .5982 

 .5455 

 . 58o9 

 ,60o5 

 . 5569 

 .5804 



.4082 

 .5187 

 .6465 

 .7520 



.5629 

 .5523 

 .6080 

 .7027 

 .8377 



.5428 

 .5673 

 .5451 

 .5595 

 . 5589 

 .5273 

 489: 1 

 .6076 



,5011 

 ,5702 



.5878 

 . 6438 

 ,5629 



.5694 



.5860 



.5135 

 .7808 



.5536 

 .5228 

 .5827 

 .5412 

 .4972 

 .6039 

 .5491 

 .5379 



.5050 

 .5849 

 .5764 

 .5634 

 .5523 

 .5694 

 I 



.6026 

 . 5872 

 .7313 



1 a 



in" 

 3 2~ 



. 68111 

 .7788 

 .6932 

 .8240 

 .7219 

 .7109 

 .7261 

 .7158 



.4650 

 .6108 

 .6140 

 .6571 



. 6080 

 . 5860 

 .6026 



.8111 



.7270 





.7729 



.8445 



.8609 



.9373 



.8974 



.8405 



.8: 



.92S9 



.4460 

 .4373 

 .6176 

 .6418 

 .702 

 .5135 

 .5872 

 .8111 

 L 

 X 



— . 

 «3 



.6900 

 .7236 

 .6957 

 .6831 

 .6919 

 .7369 

 .6814 

 .7001 



.6190 

 .7889 

 .8215 

 .8876 

 .8377 

 .7808 

 .7313 

 .7270 

 X 

 1 



Table 156. — Showing the means and standard deviations used in this study and how they were obtained. 



[The lefi-hand column tells how the entries in the two corresponding columns were calculated. In all cases in which thev were calculated indirectly 

 from the correlations the variable in question is the nontruncated variable. A double-entry means that the variable in question was cut in 

 different places on different occasions. All means and standard deviations are the terms of class intervals unless otherwise stated. In this 

 and succeeding tables the various tests of alpha will be designated as Ai, A 2 , etc.; the tests of beta as Bi, B2, etc.; the total score of alpha and 

 beta as A, ami Hi.] 



