The Efficiency of Training Methods 247 



test method last, while the ten-test and twenty-test methods 

 occupy intermediate positions. 



TABLE 46 

 EFFICIENCY OF TRAINING 



Number of Errors in White-Black Series for Different Methods of 



Training 



We may now apply to the results of our efficiency-of-train- 

 ing tables the method of measuring efficiency which was 

 mentioned at the end of the preceding chapter as the index 



