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Small-Trials Partial Reinforcement Effects in Humans: The Role of Sequential Variables
Lawrence S. Meyers, Dennis Gilman and Joseph Halpern
The American Journal of Psychology
Vol. 86, No. 4 (Dec., 1973), pp. 729-737
Published by: University of Illinois Press
Stable URL: http://www.jstor.org/stable/1422080
Page Count: 9
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The acquisition sequences in Experiment I combined light-off (-) trials with either 46% or 71% light-on (+) trials; those in Experiment II had either 2 or 4 -+ transitions, or run lengths of the - event of 1, 2, or 3. Extinction, administered after very limited acquisition training, consisted of only - trials. It was found that resistance to extinction increased as a direct function of the number of -+ transitions and the length of the run of - trials.
The American Journal of Psychology © 1973 University of Illinois Press