The three-term series problem

There are three apparently conflicting theories about the process by which an individual solves three-term series problems, i.e. problems such as ‘A is better than B, B is better than C, who is best?’ An information-processing analysis is presented which reveals that the IMAGE model of De Soto, Handel and London (1965) can easily be reconciled with the LINGUISTIC model of Clark (1969). However, an examination of some slight inconsistencies among the empirical findings reveals that such a reconciliation may be misleading. It is suggested instead that there is likely to be a change of approach during an experimental session. The individual initially may utilize a procedure analogous to the IMAGE model, modified to incorporate one of the principles of Hunter's (1957) OPERATIONAL model. Subsequently, as the result of practice, he may develop a procedure more analogous to the LINGUISTIC model.