si HAROLD C. BINGHAM 



the details of the behavior. To do this I had a form of test 

 sheet printed. It is headed by spaces for the title of investiga- 

 tion, the name cf the subject, and the date; also there are 

 spaces for reference to the record sheet and the particular series 

 of the record sheet which the test sheet contains. The 10 tests, 

 (horizontally arranged on the record page), appear vertically 

 on the test page. After each one is a space for recording the 

 details of the animal's behavior. At the right of the page is a 

 narrow column for recording the results of the test, — whether 

 or not an error was made, and the time for choosing. At the 

 bottom is a space for remarks, where the record is always totalled 

 and averaged, — total number of right and wrong choices and 

 average of time in seconds. The record and this part of the 

 remarks are transferred to their proper spaces in the record sheet. 

 The manner of recording the chick's behavior is illustrated 

 in the accompanying test sheet which is a record of an actual 

 series of tests. I used a set of symbols which enabled me to 

 follow fairly accurately the movements of an animal while in 

 the discrimination chamber. Herewith is presented the key to 

 the symbols used in these experiments: 



1- += Approach to right compartment. 



2- — = Approach to wrong compartment. 



3- /, //, /// = Degree of attention based on behavior and time. A horizontal 



bar above any one of these symbols indicates unusually long time in 

 this locality. For example, 



a J +/ = Brief consideration of right stimulus area. 

 l~/ = Brief consideration of wrong stimulus area. 



k / +// = Longer consideration of right stimulus area. 

 \— // = Longer consideration of wrong stimulus area. 



c / +/// = Close consideration of right stimulus area. 

 \ — /// = Close consideration of wrong stimulus area. 



j / +/// = Long time before and close consideration of right stimulus area. 

 I — /// = Long time before and close consideration of wrong stimulus area. 



e / +/ = Long time before but slight consideration of right stimulus area. 

 — /=Long time before but slight consideration of wrong stimulus area. 



= Attention at entrance end; indifferent to stimulus areas. 

 5 - A = Approach on wires before right stimulus followed by retreat. 



Approach on wires before right stimulus followed by wrong turn. 



7 - & = Approach on wires before wrong stimulus followed by retreat. 



a. A 1 = One .shock. 



b. A 2 = Multiple shock. 



c. a = No shock. 



8 - = Turn around, right to left; O, left to right. 



