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Indiana University Studies 



TABLE v.— MEDIAN ATTEMPTS (IN MAY AND SEPTEMBER) 

 OF PRACTICED AND UNPRACTICED GROUPS 





Unpracticed 



Practiced 



Gain Made By 



Gain of 

 Prac- 

 ticed 



over Un- 

 prac- 

 ticed 



Ssptsm- 

 ber 



May 



Septem- 

 ber 



May 



TTn 



u n- 

 prac- 

 ticed 



Prac- 

 ticed 



Grade 5 

















Addition 



5.5 



6.5 



6.3 



8.6 



1 



2.3 



1.3 



Subtraction 



5.8 



7.4 



5.8 



8.9 



1.6 



3. 



1.4 



Multiplication.. . . 



4.3 



4.8 



3.2 



7.5 



.5 



4.3 



3.8 



Division 



3.3 



3.5 



2.5 



5.7 



.2 



3.2 



3. 



Grade 6 

















Addition 



6.7 



8.8 



8.5 



12.5 



1.1 



4. 



2.9 



Subtraction 



9.5 



11.5 



9.5 



14.5 



2. 



5. 



3. 



Multiplication.. . . 



5.8 



9.3 



6.3 



10.8 



3.5 



4.5 



1 . 



Division 



4.8 



7.8 



4.8 



8.8 



3. 



4. 



1. 



TABLE VL— MEDIAN RIGHTS (IN MAY AND SEPTEMBER) OF 

 PRACTICED AND UNPRACTICED GROUPS 





Unpracticed 



Practiced 



Gain Made By 



Gain of 

 Prac- 

 ticed 

 over Un- 

 prac- 

 ticed 



Septem- 

 ber 



May 



Septem- 

 ber 



May 



Un- 

 prac- 

 ticed 



Prac- 

 ticed 



Grade 5 

















Addition 



1.5 



4.3 



1.8 



6.5 



2.8 



4,7 



1.9 



Subtraction 



2.5 



5.5 



2.3 



6.8 



3. 



4.5 



2.5 



Multiplication. . . . 



.5 



2.3 



1.5 



5.8 



1.8 



4.3 



2.5 



Division 



0 



2.3 



.5 



3.5 



2.3 



3. 



.7 



Grade 6 

















Addition 



2.5 



5.8 



4.5 



6.5 



3.3 



2. 



— 1.3 



Subtraction 



7.5 



8.5 



6.3 



11.2 





4.9 



3.9 



Multiplication.. . . 



3.5 



6.3 



2.3 



7.3 



2.8 



5.0 



2.2 



Division 



2.8 



5.5 



2.5 



7.5 



2.7 



5.0 



2.3 



