Smeets, Dymond, & Barnes-Holmes, 2000

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APA Citation: 

Smeets, P. M., Dymond, S., & Barnes-Holmes, D. (2000). Instructions, stimulus equivalence, and stimulus sorting: Effects of sequential testing arrangements and a default option. The Psychological Record, 50, 339-354.

Publication Topic: 
RFT: Empirical
Publication Type: 
Article
Language: 
English
Keyword(s): 
equivalence relation, instructionally induced conditional relations
Abstract: 

The authors, researchers at the Nation University of Ireland and Leiden University, conducted an experiment that was a modified replication of a paper-and-pencil format study by Eikeseth, Rosales-Ruiz, Duarte, and Baer (1997) on equivalence relations derived from instructionally induced conditional relations. The study consisted of three experiments, all with Dutch psychology students as subjects. The study yielded a statistically significant result supporting the thesis. Most subjects (87%) who responded correctly on the baseline training trials also responded correctly on the baseline probes. Most of these subjects responded correctly on the symmetry trials (87%), the symmetric transitivity probes (81%), and on the sorting test (76%). Symmetric transitivity was seen most often when tested after symmetry. The performances on the sorting test corresponded with the numbers of derived relations (symmetry and transitivity; symmetry or symmetric transitivity; no symmetry nor symmetric transitivity) rather than with equivalence per se. The introduction of the default option (Experiment 3) resulted in most subjects skipping and responding inaccurately on the symmetry and symmetric transitivity probes.

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