This paper introduces the Government-Binding Theory of grammar and offers examples of the theory's use in areas of language development, child language disorders, and adult aphasia. Discussed are the levels of representation of Universal Grammar, subtheories that constrain the representations at each level, parameter setting, core grammar, and…

Language samples of 15 young normal children actively engaged in learning base syntax were compared with samples of 15 linguistically deviant children of a comparable linguistic level. Mean number of morphemes per utterance was used to determine linguistic level. The two groups were matched according to five linguistic levels previously…