no. 2.] PSYCHOLOGICAL EXAMINING IN THE UNITED STATES ARMY. 409 



Table 66. — Tests in order of difficulty. 



Test. 



IV — 5. Comprehension 



3. Counts pennies 



1. Compares 1 ines 



4. Copies square 



V — 1. Definitions 



VI— 1. Right and left 



V— 5. Patience 



V — 1. Comparison of weights 



VI — 3. Counts 13 penn ies 



V — 3. Aesthetic comparison. 



VI — 1. Comprehension 



VII — 5. Differences 



VI— 2. Missing parts 



VII— 6. Diamond 



VIII — 3. Comprehension 



VII — 2. Picture description 



VII — A. Three digits backward 



IX— 3. Makes change 



VIII— 2. Counts 20-0 



IX— 1. Date 



VIII— 4. Similarities 



Vin— 1. Balland field 



IX— 2. Weights 



Number 

 failing. 



Number 

 passing. 



486 

 485 

 484 

 483 

 484 

 484 

 480 

 482 

 480 

 479 

 474 

 473 

 468 

 461 

 459 

 444 

 440 

 444 

 439 

 434 

 429 

 425 

 390 



Doubt- 

 ful. 



Test. 



X— 5. Comprehension 



X — 2. Absurdities 



IX — 4. Digits backward 



X— 3. Designs 



XII— 3. Balland field 



X — 6. Sixty words 



XII— S. Similarites 



XII— 7. Pictures 



XII— 5. Fables 



XII — 6. Five digits backward.. 



XIV— 4. Problems of fact 



XIV— 2. Induction 



XVI— 4. Boxes 



XVI— A. Physical relations 



XIV— «. Clock 



XIV — 5. Arithmetical reasoning 



XVI— 2. Fables 



XVIII— 2. Paper cutting 



XVI— 5. Six digits backward 



XVIII— 4. Thought of passage 



XVIII— 6. Ingenuity 



X VIII— 5. Seven digits backward . 



Doubt- 

 ful. 





 

 1 

 2 

 4 

 1 



10 

 12 

 12 

 5 

 1 

 18 

 20 

 7 

 1 

 1 

 7 

 8 

 2 

 4 



Table 67 gives the abbreviated scale, the location of each test in the original Stanford- 

 Binet, the number of soldiers who failed each test, and the average difficulty of the tests in each 

 year group both for the abbreviated and original scales. It will be noted that an eleven-year 

 group has been formed by the inclusion of one of the harder tests from year 10 and one of the 

 easier from year 12. Probably a somewhat different selection would have been made had it 

 been possible to base it entirely upon the diagnostic value of the tests. It was necessary, 

 however, to select such tests and to give them such location as would cause the abbreviated 

 scale to yield mental ages comparable with those based upon the entire scale. From a com- 

 parison of the last two columns in the following table it will be seen that the average difficulty 

 of the two tests located in any given year is approximately the same as the average difficulty of 

 the four starred tests of that year group in the original scale. 



Table 67. — Abbreviated Stanford-Binet scale. 



Original 

 location. 



Name of test. 



Number 

 failing. 



Average of 

 failures 



for the two 

 tests of 



each year. 



Average 

 number fail- 

 ing on the 

 four-starred 

 tests of same 

 year group 

 of original 

 scale. 



VI-1 

 V-l 



VI-3 

 VI-4 



vr-2 



VIII-3 



IX-3 

 VIII-2 



vm-2 



X-5 



X-2 

 X-3 



XII-3 

 X-6 



XII-8 

 XII-7 



Year V: 



Right and left 



Comparison of weights 



Year VI: 



Counting pennies 



Comprehension 



Year VII: 



Missing parts 



Comprehension 



Year VIII: 



Making change 



Counting 20-0 



Year IX: 



Ball and field (score 2) 



Comprehension 



YearX: 



Absurdities 



Designs 



Year XI: 



Ball and field (score 3) 



60 words (25 in 1 minute) 



Year XII: 



Similarities 



Picture interpretation 



60 

 117 



129 

 200 



249 

 263 



i Not represented. 



121435°— 21- 



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