Vol. XII, No. 18 INDIANA UNIVERSITY BULLETIN March 1, 1915 



INDIANA UNIVERSITY 

 STUDIES 



27. ARITHMETIC: A COOPERATIVE STUDY IN EDU- 

 CATIONAL MEASURExMENTS. By M. E. Haggbrty, 

 Associate Professor of Psychology, Director of the Psychological 

 Laboratory, and Director of the Bureau of Cooperative Research, 

 Indiana University. 



For Sale by the University Bookstore, Bloomington, Ind. Price 50 Cents 



