Language performance of stuttering and nonstuttering children.

This study investigated the syntactic and semantic language performance of typically dysfluent nonstuttering children, stuttering children, and highly dysfluent nonstuttering children. The three groups of children did not differ on Developmental Sentence Analysis scores. The stuttering and highly dysfluent nonstuttering children obtained significantly lower receptive vocabulary scores, made significantly more grammatical errors, and obtained significantly higher incorrect response scores on the semantic tasks.