PSYCHOLOGICAL MEASUREMENTS. 557 



In amount of available energy received, the men rank as follows, 

 the first line showing the order for the averages of the 9 days on which 

 evening psychological experiments were made with Squad A during the 

 low-diet period and the second line gives their rank during the whole 

 experiment. 



Can, Pea, Gar, Mon, Bro, Spe, Pec, Vea, Gul, Tom, Moy, Kon. 

 Can, Pea, Mon, Spe, Bro, Gar, Moy, Gul, Vea, Pec, Tom, Kon. 



Thus, Can regularly had more food than any of his fellows and Kon 

 averaged the least. There is fairly good agreement in the relative 

 size of the energy figure for each subject. The daily averages at the 

 extreme right in the lower part of table 146 are for the 10 men whose 

 records are to be averaged in the psychological results which follow. 

 Inspection of the table shows a gradual decrease to 1,398 calories on 

 November 10. There is an increase on the next three dates to 2,159 

 calories for December 19. Following the Christmas vacation, a de- 

 crease to 1,573 calories was necessary on January 12; the intake was 

 larger in the latter part of January. This table will be found convenient 

 for comparison with the results in the different measurements ; it repre- 

 sents individual days and the values must not be confused with those 

 shown in the body-weight charts which cover rather large groups of 



days. 



GROUP PSYCHOLOGICAL MEASUREMENTS. 



In discussing the results, those measurements given by the group 

 method will be first considered. They are treated in their approxi- 

 mate order of complexity, as numbered and tabulated on page 139. 



(1) ACCURACY IN TRACING. 



The data for this simple motor test are embodied in tables 147 

 and 148 for Squads A and B, respectively. At the left in chronological 

 order are found the dates for the evening experimental sessions. The 

 data for the various subjects are arranged in columns from left to right. 

 The headings of these colunms are the abbreviated names of the sub- 

 jects. The subjects are always listed in the same order, that is, with 

 Squad A, beginning with Bro and ending with Fre. The latter subject 

 served the shortest time, that is, the fewest number of sessions of any 

 one in either squad, and with some measurements there are no data 

 for him. Kon, who was originally a member of Squad B, replaced 

 Fre, who left Squad A on October 26. Kon served his first session 

 October 6 as subject No. 5 in Squad B. His data for this evening are 

 transferred to the tables for Squad A and given under the date of 

 September 29, the first session for Squad A. Fre was present at the 

 Laboratory at the second session with Squad A, that is, October 13, 

 so that Kon actually came into Squad A at a later date. He began 

 his diet reduction on October 30, and since the percentage reduction 

 was very rapid, it seems best not to average the results for Kon with 



