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Abstract
The experiments outlined in this article were performed so that the acquisition effects of KR scheduling on no-KR retention could be determined. In Experiment 1, the group that alternated between 12 KR and 12 no-KR responses produced better retention than both the group that alternated between 6 KR and 6 no-KR responses and an all-KR group. The partial KR group that performed the best on retention also received the least number of reversals from KR to no-KR responses and from no-KR to KR responses, however. In Experiment 2, when acquisition KR reversals were held constant for partial KR groups, groups that received either random KR scheduling or all KR produced similar and better retention than groups who received blocked KR scheduling. These results were reconciled with KR frequency experiments by proposing that memory processes invoked by KR protocols decrease from KR frequency, to reversal, to scheduling conditions.
