Evidence for speaker knowledge of morphological patterns, both derivational and inflectional, is not limited to productive patterns. Nonproductive patterns appear to be accessible in such a way that accessibility (a term preferred to "psychological reality") may be viewed as a function of four somewhat interdependent factors: (1) productivity, (2)…

Developmental trends in the effects of expectations regarding agent/action matches on judgments of sentence acceptability were investigated. Five sentences reflected expected relations ("harmonious") and five contradicted them ("contrary"). Twelve subjects each were in grades 4 through 8 during year 1; the same 60 subjects…