AN APPRAISAL OF PREFERENCE FOR MULTIPLE versus MIXED SCHEDULES

Steven R. Hursh, Edmund Fantino

Research output: Contribution to journalArticle

Abstract

Pigeons' choice responses on either of two keys occasionally produced entry into a terminal link associated with that key. During the terminal links, responses produced access to grain according to mixed‐ or multiple‐interval schedules. The multiple schedules provided stimuli correlated with the interval of time preceding reinforcement whereas the mixed schedules did not. The two subjects reliably preferred the multiple schedules to the mixed schedules throughout a series of replications. Preference for the multiple schedule was much smaller than suggested by earlier work comparing multiple and mixed schedules that had much higher rates of entry into the terminal links. Preference for the multiple schedule was greatly increased in this study when the rate of entry into the terminal schedules was increased. As in previous studies, these high preferences may have been the result of a sharp increase in the number of reinforcements on the multiple (as opposed to the mixed) schedule. The reliable but smaller preferences for the multiple schedule found with lower rates of entry into the terminal links were unconfounded by differences in the number of reinforcements obtained in the two terminal links. 1974 Society for the Experimental Analysis of Behavior

Original languageEnglish (US)
Pages (from-to)31-38
Number of pages8
JournalJournal of the Experimental Analysis of Behavior
Volume22
Issue number1
DOIs
StatePublished - 1974
Externally publishedYes

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ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience

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