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Grant, Douglas S. – Learning and Motivation, 2011
Experiments 1 and 2 involved independent groups that received primary reinforcement after a correct match with a probability of 1.0, 0.50 or 0.25. Correct matches that did not produce primary reinforcement produced a conditioned reinforcer. Both experiments revealed little evidence that acquisition or retention was adversely affected by use of…
Descriptors: Reinforcement, Probability, Laboratory Experiments, Conditioning
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Alessandri, Jerome; Stolarz-Fantino, Stephanie; Fantino, Edmund – Learning and Motivation, 2011
A concurrent-chains procedure was used to examine choice between segmented (two-component chained schedules) and unsegmented schedules (simple schedules) in terminal links with equal inter-reinforcement intervals. Previous studies using this kind of experimental procedure showed preference for unsegmented schedules for both pigeons and humans. In…
Descriptors: Science Activities, Intervals, Research Methodology, Reinforcement