Leader, G., & Barnes-Holmes, D. (2001). Matching-to-sample and respondent-type training as methods for producing equivalence relations: Isolating the critical variable. The Psychological Record, 51, 429-444.
The purpose of this study was to compare systematically the effectiveness of the respondent-type training procedure and the matching-to-sample training procedure. The authors contrived 4 different experiments in which respondent type training was more effective than matching to sample training, on experiment, however, when the negative comparisons were removed from matching to sample training and when the spatial position of the correct comparison varied both procedures were equally effective.