THE METHOD OF AGE GRADATION 



97 



of the pupils 7 intelligence. When, now, she com- 

 pared the results of the tests for the 12 unintelli- 

 gent and the 12 intelligent children, taken as groups, 

 she found that the differentiation of the two groups 

 appeared with quite unequal clearness in the differ- 

 ent tests. Those tests in which the intelligent had 

 the clearest advantage over the unintelligent (and 

 that therefore have the most claim for consideration 

 as tests of intelligence) are cited in the first column 

 of Table XIV. 



TABLE XIV 

 BINET TESTS WHEREIN A CLEAR DIFFERENCE IS SHOWN 



Mile. Descoeudres has also undertaken a study of 

 feeble-minded children (73), which may be intro- 

 duced here for comparison. (We shall have occa- 

 sion to discuss it in more detail later in another con- 

 nection.) The children were arranged in order of 

 the estimated degree of their feeble-mindedness and 

 with this was compared their capacity in 15 differ- 

 ent tests. Among these tests were six from the 

 Binet-Simon series, four of which yielded extraordi- 



