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Stevens, Douglas A.; and others – J Consult Clin Psychol, 1970
Examines rapid-tapping performance of 36 hyperkinetic and 36 control boys under conditions of free response, verbal urging, and penny rewards. Hyperkinetics were unable to adjust to changing incentive conditions. (Author/EK)
Descriptors: Behavior Patterns, Behavior Problems, Hyperactivity, Mental Retardation