PSYCHOLOGICAL MEASUREMENTS. 



625 



performed in 10 seconds, and all are below the previous records for 

 this squad. The records for the last two dates are considerably lower 

 than any of those found for Squad A. 



Before drawing final conclusions regarding the relation of the low 

 diet to this muscle-coordination test, we must inspect the data taken 

 in the morning trials. These 

 data are presented in tables 184 

 and 185. The average per- 

 formance for Squad A the first 

 time these morning measure- 

 ments were made was 67.8 os- 

 cillations. This experiment was 

 made on the morning following 

 the third evening experiment, 

 for the morning finger-move- 

 ment tests were not begun until 

 after Squad A had been several 

 weeks on low diet. Hence this 

 figure can not be compared 

 directly with the normal for the 

 evening of September 29, but 

 should be compared with the 

 value for the evening of Octo- 

 ber 27, which is 66.6 oscilla- 

 tions. It is therefore 1.2 os- 

 cillations higher than the eve- 

 ning record. The morning re- 

 cord for November 11, which 

 is 66.5 oscillations, should likewise be compared with the evening 

 record of November 10 of 64.2 oscillations, the difference in favor 



Fig. 120. — Number of finger movements per- 

 formed in 10 seconds at morning sessions. 



Solid lines represent Squad A, broken lines 

 Squad B. 



