238 The Dancing Mouse 



I do not doubt that 10 individuals would furnish a more 

 reliable average ,than 5, but I do doubt whether the pur- 

 poses of my experiments would have justified the great in- 

 crease in work which the use of averages based upon so large 

 a group would have necessitated. 



Further discussion of the index of modifiability may be 

 postponed until the several indices which serve as measures 

 of the efficiency of different methods of training have been 

 presented in the next chapter. 



From the data which constitute the materials of the present 

 chapter it is apparent that the results of the discrimination 

 method are amenable to much more accurate quantitative 

 treatment than are those of the problem method or the laby- 

 rinth method. But I have done little more as yet than de- 

 scribe the method by which it is possible to measure certain 

 dimensions of the intelligence of the dancer, and to state some 

 general results of its application. In the remaining chapters 

 it will be our task to discover the value of this method and of 

 the results which it has yielded. 



