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GardnerW. I.Reactions of intellectually normal and retarded boys after experimentally induced failureāa social learning theory interpretation. Unpublished doctoral dissertation, George Peabody College for Teachers, 1958.
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GardnerW. I.Effects of interpolated success and failure on motor task performance in mental defectives. Paper read at Southeastern Psychological Association meetings, Nashville, Tenn., 1957.
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HeberR. F.Expectancy and expectancy changes in normal and mentally retarded boys. Unpublished doctoral dissertation, George Peabody College for Teachers, 1957.
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JamesW. H.Internal versus external control of reinforcement as a basic variable in learning theory. Unpublished doctoral dissertation, The Ohio State University, 1957.
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MossJ. W.Failure-avoiding and success-striving behavior in mentally retarded and normal children. Unpublished doctoral dissertation, George Peabody College for Teachers, 1958.
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PharesE. J.Changes in expectancy in skill and chance situations. Unpublished doctoral dissertation, The Ohio State University, 1955.
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PiagetJ.The construction of reality in the child. New York: Basic Books, 1954.
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RingelheimD.Effects of internal and external reinforcement on expectancies in mentally retarded and normal boys. Unpublished doctoral dissertation, George Peabody College for Teachers, 1958.
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SpradlinJ. E.Effects of reinforcement schedules on extinction in severely mentally retarded children. Unpublished doctoral dissertation, George Peabody College for Teachers, 1959.