References
- Feldhusen , J. F. , Houtz , J. C. and Ringenbach , S. 1972 . The Purdue Elementary Problem Solving Inventory . Psychol. Rep. , 31 : 891 – 901 .
- Homme , L. E. , DeBaca , P. C. , Devine , J. V. , Steinhorst , R. and Rickert , E. J. 1963 . Use of the Premack principle in controlling the behavior of nursery school children . J. Exper. Anal. Behav. , 6 : 544
- Houtz , J. C. and Feldhusen , J. F. 1976 . The modification of fourth graders' problem solving abilities . J. of Psychol. , 93 : 229 – 237 .
- Lovitt , T. C. , Guppy , T. E. and Blattner , J. E. 1969 . The use of free time contingency with fourth graders to increase spelling accuracy . Bahav. Res. & Ther. , 7 : 155 – 156 .
- Osborne , J. G. 1969 . Free-time as a reinforcer in the management of classroom behavior . J. Appl. Behav. Anal. , 2 : 171 – 179 .
- Premack , D. C. 1965 . “ Reinforcement theory ” . In Nebraska Symposium on Motivation , Edited by: Levine , D. 123 – 180 . Lincoln, Neb. : Univ. Nebraska Press .
- Treffinger , D. J. , Speedie , S. M. and Brunner , W. D. 1974 . Improving children's creative problem solving ability: The Purdue Creativity Project . J. Creat. Behav. , 8 : 20 – 30 .
- Wasix , B. H. 1970 . The application of Premack's generalization on reinforcement to the management of classroom behavior . J. Exper. Child Psychol. , 10 : 33 – 43 .
- Winer , B. J. 1971 . Statistical Principles in Experimental Design, , 2nd ed. , New York : McGraw-Hill .