The present investigation is a study of the development of adjective definitions given by participants in Grades 6 and 10 and by young adults, as well as the influence of word frequency on those definitions. A total of 150 participants (50 per age group) wrote definitions for 6 high-frequency and 6 low-frequency adjectives. Adjective definitions…

The instructional techniques and materials for classroom use presented are based on a three-tiered model for the practice of grammatical structures that avoids the common problem of trying to elicit normal, spontaneous conversation. Situations are devised that by their nature tend to evoke only particular structures. The first tier of the model…

Many authors have argued that word-learning constraints help guide a word-learner's hypotheses as to the meaning of a newly heard word. One such class of constraints derives from the observation that word-learners of all ages prefer to map novel labels to novel objects in situations of referential ambiguity. In this paper I use eye-tracking to…

An analysis of part-of-speech membership was made utilizing certain mechanisms that have been proposed to explain the nature of word classes. It was proposed that words of the same form class constitute "verbal habit families" on the basis of either a common grammatical meaning response, a common affix, or a common label (e.g., "verb"). One…