Abstract:The use of two choices in the matching‐to‐sample (MTS) procedure has been discouraged in the literature because it may lead to “reject control,” resulting in failures to establish equivalence classes. In the present study, reject control was prevented during training with the two‐choice MTS procedure by presenting the correct comparison with one of five possible incorrect comparisons across trials. This procedure was compared to a six‐choice MTS procedure, in which these same six comparison stimuli were presen… Show more
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