Abstract
Three insulin-dependent diabetic patients estimated their blood glucose levels twice daily. Following baseline two interventions were implemented: (1) In the feedback procedure (F) subjects received immediate feedback regarding the accuracy of their estimation; (2) In the feedback plus external cues procedure (FEC) subjects were told to take into account a list of "external cues" related to blood glucose levels before estimating their level and receiving feedback. The FEC procedure resulted in a larger increase in accuracy of blood glucose level estimation than the feedback-only procedure. The FEC procedure also resulted in more important decreases in the percentage of hyperglycemic assessments and in the percentage of nonestimated hyperglycemias than the feedback procedure.
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