The present article attempts to discover if learners can use three higher order transitions between subunits- to extend structures made of right-branching trees, to elaborate a tree by adding substructures, alternating responses from the two subsystems. (Author)

Presents MAC/FAC, a model of similarity-based retrieval that attempts to capture psychological phenomena; discusses its limitations and extensions, its relationship with other retrieval models, and its placement in the context of other work on the nature of similarity. Examines the utility of the model through psychological experiments and…

Butch and Slim was written as a response to a need for a rather specialised group of items in the Reasoning sub-scale of the British Intelligence Scale. (Author)

The first topic of the conference was creativity. Papers delivered were Knowledge and Creativity by Theodore C. Denise and Hobert W. Burns; Potentiality for Creativity and Its Measurement, by J. P. Guilford; and Some Methodological Issues in the Study of Creativity by Robert L. Thorndike. In the second session, a paper on comparability of scores…