The purpose of this study was to explore the production of infinitival complements by children with specific language impairment (SLI) as compared with mean length of utterance (MLU)-matched children in an effort to clarify inconsistencies in the literature. Spontaneous language samples were analysed for infinitival complements (reduced…

Purpose: The authors describe the procedures used to explain an unexpected finding that adolescents with Down syndrome (DS) had a lower mean length of utterance (MLU) than typically developing (TD) children in interviews without picture support, but not in narratives supported by wordless picture books. They hypothesize that the picture support of…