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Human causality judgments and response rates on DRL and DRH schedules of reinforcement.

Authors
  • Reed, Phil1
  • 1 Department of Psychology, University College London, London, England. [email protected]
Type
Published Article
Journal
Learning & behavior
Publication Date
May 2003
Volume
31
Issue
2
Pages
205–211
Identifiers
PMID: 12882379
Source
Medline
License
Unknown

Abstract

The effect of various relationships between a response (an investment made in the context of a game) and an outcome (a return on the investment) on judgments of the causal effectiveness of the response was examined. In Experiment 1, response rates and causal judgments were higher for a differential-reinforcement-of-high-rate (DRH) schedule relative to a variable-ratio (VR) schedule with the same probability of outcome following a response. Response rates were also higher for a DRH than for a variable-interval schedule matched for reinforcement rate. In Experiment 2, response rates and causal judgments were lower for a differential-reinforcement-of-low-rate schedule relative to a VR schedule with the same probability of outcome following a response. These results corroborate the view that schedules are a determinant of both response rates and causal judgments, and that few current theories of causal judgment explicitly predict this pattern of results.

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