The effects of an interdependent group-oriented contingency on middle school students' physical activity levels during physical education /

Bibliographic Details

Main Author:	Schuldheisz, Joel M.
Format:	Thesis Microform Book
Language:	English
Published:	[Place of publication not identified] : [publisher not identified] ; 1998.
Subjects:	Physical education for children. Physical fitness for children. Exercise for children.