446 



Indiana University Studies 



for any class is of course a high median with a low per cent of 

 variability. Measured by this combined standard city 13 stands 

 first with a median of 7.6 and a variability of 24. City 10 is 



T'lG.lT-VASUHjLlTY .SBRTR,S B GRADE 5 ADDITFOT') 



almost as good, but falls .2 in median score. City 8 is essentially 

 as good as city 10, having .1 better median but 1 per cent poorer 

 variability. At the opposite end of the scale is city 5 with the 

 lowest median in the group and with the widest range of ability 

 in the same class. 



The variabilities for the several grades of the several cities are 



