Properties of the input, such as raw frequency and syntactic diversity, have been shown to play a role, to different extents, in the acquisition of nouns and verbs. This study investigated the relationship between three properties of the input (input frequency, syntactic diversity, and variety in noun-type co-occurrence) and age of acquisition of…

Examination of the productive narrative competence of three five-year-olds revealed that the children routinely and regularly produced a striking variety of 14 narrative forms. Seventy percent of the narratives took anecdotal form, and original fantasy narratives occurred only rarely. (Author/CB)

Examination of the first 50 words of three blind children revealed that the early vocabulary paralleled that of seeing children in terms of age and speed of acquisition. Differences between the two groups were related to factors which were highly influenced by experience (including visual experience). (Author/CB)