Three empirical studies were conducted to investigate the hypothesis that the "easy to see" construction (such as in the sentence "children are hard to understand") is acquired at a younger age than the 7-9 year range reported by previous studies (Cambon and Sinclair, 1974; Chomsky, 1969; 1972; Cromer, 1970; Kessel, 1970).…

That semantics interacts with syntax has been shown in psycholinguistic investigations of the processing of language by adults and of the acquisition of language by children. The few programs for language assessment and therapy that have attempted to incorporate semantic considerations have included some misunderstandings of the psycholinguistic…