468 



Indiana University Studies 



Courtis general, and the Indiana city and individual medians. 

 Then follow the cities in order. 



No grade in any city attained more than 91 per cent of depend- 

 ability. This maximum is attained by city 2, which ranks 20 in 



100 1 1 



80- 



40 













































o 



z 

 o 







DUA 















f- 



trt 

 o 



mo 



ITY 



1 

















ca 



u 







1 





3 



4 



3 





FIG. 37 OEPENDABILITY aTTEuL^c CENT 





10 



1! 





9 



12 



13 



11 



15 



16 



17 



J S 



19 



SERIES B GRADE 6 AD DITION 



9 lO n 13 13 14 13 16 17 18 19 20 



FIG. 38 DEPENDABILITY fil^ PER CENT SERIES B GRADE 6 SUBTRACTION 



ATTEMPTS 



both medians and variabilities. In fact this city which ranged so 

 low by the other two measures of efficiency ranks above the average 

 in every point but three, and in six of the sixteen tests actually 

 ranks first. It is also first in composite ranking. City 13, which 

 ranked first in medians, and first in variabilities, drops in fifth 

 grade addition, to rank 2, with a per cent of dependability 



