ABSTRACT
Engineers have long appreciated the value of being able to predict performance times. Several mathematical models have been developed with the aim of improving one’s ability to make more accurate predictions (Globerson, Levin and Schtub, 1989). Though much effort has been devoted to predict learning rates, little research has been done to examine the effects of forgetting for typical manufacturing type tasks. Globerson, et al. (1989) and Sparks and Yearout (1990) concurrently examined the impacts of forgetting in the work place. Both of these experiments investigated the effects that an extended break may have upon the traditionally accepted negative exponential model.
