The purpose of this study was to establish a set of normative data (growth curve and centiles) for the Infant Monitor of vocal Production (IMP) using a representative population of infants with typically developing hearing. A linear mixed effect model and regression was used to derive 'stage-for-age' trajectory and growth centiles from the…

The linguistic abilities demonstrated by second grade students show a high level of competence in the use of syntactic structures and lexicon. This report describes and interprets, in terms of language function, the talking and writing of fifteen Australian children. Transcripts of conversations provide the basis for the linguistic analysis and…