Linear Structural Models for on Computer - Controlled Terminals esponse and Laten 9 Performance in

IN THE cognitive domain mathematics provides one of the clearest examples of complex learning and performance, for the structure of the subject itself provides numerous constraints on any adequate theory. The learning and performance models derived from the main trends of contemporary mathematical learning theory have provided an excellent predictive analysis of a large variety of experimental situations. Unfortunately, however, most of these experhental situations are much simpler in structure than even the simplest corresponding parts of elementary mathematics. Because this cldm is central to the motivations behind the present paper, we should like to expand on it in some detail.