128 MEMOIRS NATIONAL ACADEMY OF SCIENCES [vol. xv, 



Test 7, practical judgment. 



"Attention! Look at the directions while I read them. 



" This is a test of common-sense. Below are 10 questions. Four answers are given to each question. You are to 

 look at the answers carefully; then make a cross in the square before the best answer to each question, as in the sample 

 at the top of the page: 



"Why do we use stoves? Because — 



□ they look well 



□ they are black 



|x] they keep us warm 



□ they are made of iron 



" Here the third answer is the best one and is marked with a cross. 

 "Begin with No. 1 and keep on until time is called. — Ready — GO ! " 

 After 1 minute say "STOP! Turn over the page to test 8." 



Test S, number series completion. 



(N. B. Examiner. Give these instructions very slowly.) 



"Attention! Look at the directions at the top of the page while I read them." (Examiner reads slowly.) 



" In the lines below, each number is gotten in a certain way from the numbers coming before it. Study out what 

 this way is in each line and then write in the space left for it the number that should come next. The first two lines 

 are already filled in as they should be. 



"Look at the finst sample — 2, 4, 6, 8, 10. Each number is formed by adding 2 to the number before it, so the 

 number after 10, on the dotted line, must be 12. 



" Look at the second sample — 11, 12, 14, 15, 17. Here you do not add the same number each time, but you add 

 first, one, then two; then one, then two; and so on; so, to carry out that plan, the number after 17, on the dotted 

 line, must be 18. 



" Sometimes you need to add, sometimes to subtract.- — Ready — GO!" 



After 2 minutes say " STOP! Turn over the page to test 9." 



Test 9, analogies. 



" Attention! Notice the words in the first sample at the top of the page: 



Sky — blue : grass, then in parenthesis, grow, green, cut, dead. 

 "Sky stands in the same relation to blue that grass does to one of the four words that follow it in parenthesis; 

 that word is green, because grass is green, just as sky is blue. 

 " Again, notice the second sample: 



" Fish — swims : man, then in parenthesis, boy, woman, walks, girl. 

 " Here the right word is rvalks. A fish swims and a man walks. 

 "Nw notice the third sample: 



"Day — night : white, then in parenthesis, red, black, clear, pure. 

 " Here the right word is black. Night is the opposite of day and black is the opposite of white. 

 "In each of the lines below the first two words have a certain relation. Notice that relation and draw a line 

 under the one word in the parenthesis which has that particular relation to the third word. Begin with No. 1 and 

 mark as many sets as you can before time is called. — Ready — GO! " 

 After 3 minutes say " STOP! Turn over the page to test 10." 



Test 10, number comparison. 



" Attention! Look at the directions at the top of the page while I read them." (Examiner reads slowly.) 

 " Draw a line under the largest number and also under the smallest number in every column on the page." 

 "Notice the samples. In the first sample column you see that 87 and 19 are underlined. Eighty-seven is the 

 largest number and 19 is the smallest number in that column. In the second sample column, 23 and 98 are under- 

 lined; these are the smallest and the largest numbers in that column. In the same way draw a line under the 

 largest number and also under the smallest number in every column on the page. — Ready — GO ! " 



After 2 minutes say, " STOP! Turn over to page 1 again. In the upper right-hand corner where it says ' Group 



No. ,' put the number 101 (or 102, 103, etc., according to the number of this group in the examiner's series or 



groups)." 



Have the examination records and pencils collected immediately and before the men are allowed to leave their 

 seats. 



GROUP INTELLIGENCE EXAMINATION &. 



Nature and purpose. — This examination utilizes tests 3-9 of group examination a, but with considerably increased 

 time. Its purpose is to give to those who have made a low score in group examination a, a more favorable chance to 

 show what they can do. The proportion taking it may range from 10 per cent to 40 per cent of those who have taken 

 group examination a. Groups as large as 80 may be tested at once. Ordinarily it will be possible to test in a single 



