Abstract
The study investigated the temporal relationship between performance gains and awareness in concept conditioning. The Ss were required to select 1 of the 4 words of 4 different concepts. Awareness of the concept and the contingency between responses and reinforcement was evaluated by means of a postconditioning interview. Successful conditioning was found in Ss who had acquired the concept. The performance increased after Ss acquired the concept, though performance in these Ss did not increase prior to reports of the concepts. Performance gains were not found in Ss who were merely aware of the contingency, nor in Ss who were not aware of the contingency. The results suggest that performance gains in concept conditioning are not mediated by awareness of the contingency, but mediated by awareness of the concept.