Analogical transfer in problem solving is one example of analogical co
gnition, which also includes metaphors, similes, and case-based reason
ing. The dominant theories in this area posit that abstract schemata m
ediate transfer (K. J. Holyoak, 1984a, 1985) or that problem solving b
y means of analogy is accomplished through application of the formal o
r deep structural characteristics of one problem to another (D. Gentne
r, 1983, 1989). More recently, exemplar-based accounts (D. L. Medin &
B. H. Ross, 1989; B. H. Ross, 1987) have emphasized problem content an
d exemplar-specific details in the various stages of transfer. The pre
sent article reviews research on analogical transfer and analyzes the
theoretical models in light of this evidence. An adequate theory of an
alogical transfer must account not only for the use of schematic knowl
edge but also for the importance of surface information in all stages
of transfer (Reeves and Weisberg, 1993a). As such, it will be a hybrid
of the various models presented, with exemplar-based models such as t
hat of B. H. Ross as a base.