38 



Indiana University Studies 



eral methods have been suggested to accomphsh the latter aim. 

 The brightest pupils might be promoted to a class that equals 

 them in ability, while those at the other end of the scale might 

 be demoted or given special attention until they approach me- 

 dian ability. All should receive the benefit of supervised 

 study. There is quite as much waste from inattention to the 

 superior pupil as from the retarded state of the inferior one 

 in ability. 



The variabilities for the 27 cities are given in Table XIII. 

 For attempts in the column for fifth grade addition the per 

 cent of variability ranges from 12 in Cities 5 and 14 to 36 



TABLE XIII — Variabilities: Tw^i^nty-Seven Towns and Cities; Four 

 Grades, Four Tests. Also City and Individual Variabilities 



CiTT 

 - 



Grade 5 



Grade 6 



Addi- 

 tion 



Sub- 

 trac- 

 tion 



Multi- 

 plica- 

 tion 



Divi- 

 sion 



Addi- 

 tion 



Sub- 

 trac- 

 tion 



Multi- 

 plica- 

 tion 



Divi- 

 sion 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



Accuracy 



Attempts 



>, 



1 

 5 

 0 



<1 



1 



17 



27 



25 



36 



26 



31 



32 





15 



29 



13 





16 



23 



18 



27 



2 



17 



23 



19 



17 



12 





16 



23 



21 



17 



14 



20 



17 



22 



27 





3. 



33 



19 



20 



21 



27 



'25 



30 



18 



15 



15 



12 



33 



21 



27 



21 



19 



4 



29 





18 



18 



21 



28 



19 





14 





27 



20 



27 



19 



30 



21 



5 



6 



12 





13 



16 



16 



28 



25 



'19 



19 



14 



15 



20 



18 



20 



23 



16 



7 



19 



25 



19 



13 



18 



25 



29 



23 



26 



31 



20 



22 



29 



25 



30 





8 



17 



21 



13 



37 



22 



24 



21 



20 



22 



29 



18 



36 



28 



25 



24 



36 



9 



23 



33 



23 



22 



44 





31 





17 





15 



19 



21 



31 



33 



24 



10 



23 



36 





36 





40 



50 



"23 



16 



41 



37 



30 



23 



39 



40 



31 



11 



37 



15 



24 



24 



19 



17 



37 



18 



21 



22 



13 



25 



17 



26 



26 



23 



12 



31 



19 



18 



22 



28 



33 



34 



37 



10 



14 



19 



28 



17 



19 



19 



15 



13 



30 



14 



16 



28 



18 



19 



21 





19 



27 



12 



27 



23 



17 



15 



27 



14 



12 



18 



20 



28 



20 





23 





18 



26 



19 



22 



27 



24 



29 



22 



15 



19 



21 









17 



30 



23 



13 





15 



21 



27 



17 



27 





16 



23 



19 



17 



22 



27 



17 



16 



19 



'37 



14 



21 



20 



20 



'39 



17 



17 



25 



18 



23 



18 



15 



23 





18 



20 



15 



'21 



17 



29 



30 



25 



18 



16 





26 



19 



30 





37 





16 



19 



16 



24 



18 



29 



23 



21 



19 



22 



21 



19 



23 



19 



21 



31 





16 



19 



17 



18 



23 



19 



27 



19 



20 



26 





23 



28 



21 



'28 



30 





24 



16 



20 



17 



19 



23 



36 



21 



21 



18 



20 



21 



21 



37 





44 





19 





16 



23 



18 



26 



41 



35 



22 



36 



23 



20 



20 



21 



40 



27 



19 



21 



'23 



25 



24 



25 



23 



30 



32 



23 



25 



24 



19 



19 



26 



21 



28 



14 



23 



22 



20 



20 



25 



28 



32 



25 



24 



14 





19 



26 



17 





21 





16 



21 



14 



18 



17 



22 



27 



26 



25 



17 



25 



21 



19 



19 



19 



36 



23 



17 



23 



25 



16 



23 



17 



31 



21 



26 



23 



22 



20 



31 



29 





35 





20 



20 



18 



28 



23 



21 



28 



22 



27 



19 



21 



19 



23 



25 



'25 



■ 32 



'21 



16 



24 



19 



22 



21 



19 



25 



31 



Individual 



22 



21 



20 



26 



24 



21 



32 





20 



20 



18 



24 



25 



26 



28 



29 



City 



22 



22 



14 



23 



22 



25 



29 



"21 



18 



23| 18 



, 1 



21 



22 



23 



27 



23 



