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Indiana University Studies 



may study a table at a time, comparing one city with another as 

 to median, variability, mode, minimum score, maximum score, etc., 

 or he may choose one city and follow it through each of the thirty- 

 two tables, noting the relation of problems attempted to problems 

 correctly solved ; the relation of efficiency in addition to efficiency 



500 lOOO 1300 2000 



FIG. 7 MEDIANS GRADE 6 SERIES B MULTIPLICATION 



in subtraction, multiplication, and division; the relative efficiency 

 of the fifth grade to the sixth, seventh, and eighth grade. 



As a sample of the first method let us take the record in Table 

 II. Take first of all the matter of minimum score. City 19 had 

 .7 per cent of its fifth grade (1 child j who did not attempt one 

 problem. Cities 1, 5, 6, 10, 11 had children who attempted only 

 one. Cities 2, 3, 4, 8, 9, 12, 14, 15, 18 and 20 had two problems 

 as the minimum attempts, and all of the children in cities 7, 13, 

 16, and 17 attempted at least three problems. The variation in 



