PSYCHOLOGICAL MEASUREMENTS. 



571 



The average for the 10 regular subjects of Squad A (see right-hand col- 

 umn of table 153) shows a rapid and uninterrupted improvement 

 except on January 12. 



Squad B, table 154, shows the same general result with this test. 

 In the five normal experiments all the subjects improved regularly, 

 with the exception of a small relapse on the part of some subjects, for 

 example. How, Ham, McM, Sue and Wil on December 15. In the 

 normal averages Wil and Van lead with scores of 58.4 and 55.4, respec- 



Table 153. — Squad A — Efficiency scores for cancellation of number groups. 



tively. Several subjects have scores of 40 and above. These in order 

 of rank would be Har, Lon, Sne, Liv, Ham, and Tho. In the low-diet 

 period each subject for whom records are complete shows an average 

 above his normal. In the case of Sch, who only had one normal ex- 

 periment (January 5) there was no improvement and, in fact, a slight 

 decrement during the reduction period. This subject omitted a 

 large number. (See record for January 27.) In the low-diet period 

 the highest average was that of Van, 83.3, an increase of 27.9 



