A STUDY OF THE BEHAVIOR OF THE PIG 213 



Although these figures are far from conclusive, we are con- 

 vinced from the behavior of the animals that neither was choos- 

 ing by familiarity with the particular settings. She, as has 

 been pointed out, did as well with the control series as with the 

 regular series, and he did even better in the first control series 

 than in the regular series, while showing extreme confusion in 

 the second control series. This was doubtless due to insufficient 

 hunger and the distracting influence of a mistake in the first 

 trial of the series. His carelessness throughout the last control 

 series was conspicuous. 



Comparison of the results for problems 2 and 3 indicate that 

 for the female problem 3 was somewhat the more difficult, 

 whereas for the male, problem 2 required a larger number of 

 trials. We are by no means convinced by this comparison that 

 the problems have not been used in the order of increasing diffi- 

 cultness, for we consider the female subject a much more reliable 

 individual than the male, and we suspect that his greater facility 

 in the solution of the third problem was due in part, at least, 

 to the experience of the experimenters in dealing with his tem- 

 peramental and other peculiarities. 



PROBLEM 4 



The data to be considered in this connection appear in tables 

 9, 10 and 11. The correct mechanism is definable simply as 

 the middle one, and the expectation prior to experience is one 

 correct to four incorrect first choices, since the total number of 

 doors open in the series of ten settings is fifty. As is shown in 

 table 11, precisely this ratio resulted from the first day's experi- 

 mentation in the case of each individual. 



Ten trials per series were given regularly throughout the 

 work on this problem. 



Unlike the preceding problems, this one proved insoluble. 

 Consequently, the detailed results as they appear in tables 

 9 and 10 are especially important, since from them may be 

 read the reactive tendencies and their relations to one another. 

 It is, of course, easy to understand why the ratio of correct to 

 incorrect first choices should change steadily in the direction 

 of the solution of the problem, for each subject gradually learned 

 to react appropriately to certain of the settings while failing 

 to acquire the ability to react to the relation middleness. 



