XII. SUMMARY 



1. Albino and colored mice can be used to advantage for labora- 

 tory work in animal behavior. 



2. Both the maze and the multiple choice apparatus that were 

 used in this investigation appear well adapted for this kind of work. 



3. There is a (marked difference in individual behavior, with a 

 close correlation between time and error records. 



4. There appears to be a fairly close relation, in the maze test of 

 this investigation, between .performance at the beginning of the ini- 

 tial learning period with performance at the end of the same period. 

 The quick learners appear to make the best records at the end of the 

 test. This relation appears to hold for the results in the multiple 

 choice test, but in this case the coefficient of correlation is much 

 lower. 



5. There appears to be practically no correlation between per- 

 formance in the maze test with performance in the multiple choice 

 test, and this may be due to factors peculiar to each test, as has al- 

 ready been discussed in the body of this thesis. 



6. On the whole, the animals that do well in the initial learning 

 period of the maze test continue to make good time averages in both 

 of the interference tests and in the retention test. 



7. The quick learners appear to exhibit a considerable amount of 

 flexibility of behavior. 



8. Definite types of movements were noted in the formation of 

 habits in both the position test and the discrimination test. 



9. There appears to be a certain amount of interference effect 

 carried over from one type of reaction to another. 



10. Poor health in an animal may not necessarily be correlated 

 with slow learning ability, for when a habit is once fixed it may resist 

 a considerable amount of disturbing influence. 



11. There appears to be no particular resemblance among indi- 

 viduals of the same litter, as judged by their time records for vari- 

 ous tests. 



12. There appears to be a considerable difference among different 

 strains. 



13. There appears to be a sex difference in favor of the males in 

 all the tests of these experiments. 



14. The females appear more variable than the males in their 

 behavior. 



58 



