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Sealey, Diane M.; Sumpter, Catherine E.; Temple, W.; Foster, T. Mary – Journal of the Experimental Analysis of Behavior, 2005
To examine the effects on concurrent performance of independent manipulations of response-unit duration and number, 6 hens were exposed to concurrent second- order schedules of reinforcement. Each first-order operant unit required completion of a fixed-ratio schedule within the time specified by a fixed- interval schedule, with one further…
Descriptors: Intervals, Reinforcement, Stimuli, Prediction