356 



MEMOIRS NATIONAL ACADEMY OF SCIENCES. 



[Vol. XV, 



I. The Individual Linguality Test — Continued. 

 Verbal. Performance. 



B. 



14. What does this mean: "Do not enter the Captain's 



office without the sergeant's permission?" 



15. What does it mean when you are told to "keep always 



on the alert?" 



16. If an officer told you to remain in the "immediate 



vicinity," what would you do? 



17. Just what does it mean "to quit your post?" 



18. What is a "violation of orders?" 



19. What is meant by the "strength of an organization?" 



15. Foldyourarms. (No help.) 



16. Place your feet at an angle of 30 degrees. (No help.) 



17. Rise on the toes and inhale deeply. (No help.) 



18. Bring the elbows to the side and clench the fists. 



(No help.) 



19. Raise the arms laterally until horizontal. (No help.) 



20. Raise the arms vertically, palms to the front. (No 



help.) 



20. What does it mean for one man to "conform to the gait of another?" 



21. Explain the meaning of this sentence: "The moment to charge is when you have broken the enemy's resistance 



and destroyed his morale." 



22. Explain the meaning of this sentence: "Cavalry can not always prevent sudden incursions of the enemy." 



23. Explain the meaning of this sentence: "The rate of advance is dependent upon the nature of the terrain." 



24. What does it mean when two soldiers are said to be "mutually visible?" 



25. Explain the meaning of this sentence: "A converging fire is more efficacious than a diverging." 



Table 42a. 



[Individual linguality test: Figures show per cent successes for separate items of test. Group 1=460 men of non-English development battalion, 

 including a few high grade English-speaking men of training cadre. Group 11=173 English-speaking men from depot brigade and from 

 company of heart defects.] 



Correlation of "verbal" and "performance" halves. — The correlation between scores on the two halves of the test 

 is, in the case of the 460 non-English men from the development battalion, 0.788; and, in the case of the 173 English- 

 speaking men, 0.796. For this reason it was assumed that there was no need to consider the two halves sepa- 

 rately and that the score might be taken as the total successes, no matter on which half the successes were made. 



Ratings. — Ratings have been assigned as follows: 



E 

 0-8 



D 

 9-19 



C 



20-27 



B 



28-39 



A 

 40-45 



The grounds for these assumptions were as follows: 



(a) With certain exceptions the breaks from D to C, C to B, and B to A show abrupt changes in the curve of 

 difficulty as measured by the percentages. They are the natural statistical breaks. 



(6) Although the scale was intended to progress gradually, after working with the non-English subjects, it appeared 

 that there were obvious abrupt changes in difficulty consistent with the statistical evidence. 



