D. Medley, "Measuring Dimensions of Teaching Style: A Study of the Measurement Properties of Observation Schedule and Record-Form 4V," unpublished paper, University of Virginia, 1970.
2.
H.F. Harlow , "The Formation of Learning Sets," Psychological Review56 (1949): 51-65.
3.
H.F. Harlow, "Learning Set and Error Factor Theory," in Psychology: A Study of a Science, Vol. II, S. Koch, ed. (New York: McGraw-Hill , 1959), pp. 492-537.
4.
H.W. Reese, "Discrimination Learning Sets in Children," in Advances in Child Development and Behavior, Vol. I, L. Lipsett and C. Spiker, eds. (New York: Academic Press, 1964), pp. 116-45.
5.
C.M. Clark, A Model Teacher Training System: Questioning, Explaining, and Listening Skills and Tutoring (Stanford Center for Research and Development in Teaching, R&D Memorandum No. 96. (Palo Alto, Calif.: Stanford University, 1972). (ED 068 451)
6.
C.M. Clark, The Effects of Teacher Practice on Student Learning and Attitudes in Small Group Instruction (Standard Center for Research and Development in Teaching, Technical Report No. 47. (Palo Alto, Calif.: Stanford University, 1976).