Across languages, children map words to meaning with great efficiency, despite a seemingly unconstrained space of potential mappings. The literature on how children do this is primarily limited to spoken language. This leaves a gap in our understanding of sign language acquisition, because several of the hypothesized mechanisms that children use…

Some 76 hearing children in prekindergarten classes, half receiving sign instruction and half not, were tested on English vocabulary acquisition. Children who received the sign instruction scored significantly higher on the Peabody Picture Vocabulary Test than children receiving sign instruction. (Contains 15 references.) (Author/LB)