In this report, three theories of transitive inference are compared as they apply to the solution of linear syllogisms: a spatial theory, a linguistic theory, and a new mixed linguistic-spatial theory. Each theory is expressed in terms of an information-processing (flow chart) model and a mathematical model that quantifies the…

This paper discusses various theories of the role of memory in vocabulary acquisition and storage. Several research models are described, and theoretical considerations and questions are presented. The lexicon is seen as an element of grammar; an understanding of lexicon organization is important in the understanding of vocabulary acquisition.…