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Indiana University Studies 



Dependability 



There is still another way in which the results of these tests 

 may be considered as a measure of school work. If a child tries 

 five problems and gets correct results for all the five his work 



r iG. 33 PRPENDABIUTY 



SERIES B GRADE 3 ADDITION 



18 19 20 



DEFENDABiarV 



ATTEMPTS 



PER CENT 



.SERIES B GRAPt ; 5 



SIBTRACTION 



may be considered highly dependable. Another child may try five 

 problems and get only two correct. His work is not dependable. 

 It is possible to get a mathematical statement for this fact of 

 dependability by dividing the number of problems correctly solved 

 by the number of problems attempted. By this means the first 

 child may be said to be 100 per cent dependable ; the second child 



