Errors of Omission and Commission in Verbal and Nominal Inflectional Morphemes by Children with SLI: Phonological Effects and Acoustic Analysis

It has previously been shown that inconsistency in the early morpheme productions of typically developing (TD) children and those with Specific Language Impairment (SLI) can be partly explained by the phonological complexity of the coda. However, it is not yet known whether TD and SLI children have similar underlying processes of morpheme acquisition. Of particular interest is the reported later acquisition of syllabic morphemes (e.g. buses) in TD children; are these also acquired later by children with SLI? Finally, acoustic analysis was used to study the errors of commission, shedding light on the development of morphological representations.