The goal of this research programme was to evaluate the role of word lexicality in effecting phonological change in children's sound systems. Four children with functional speech sound disorders (SSDs) were enrolled in an across-subjects multiple baseline single-subject design; two were treated using high-frequency real words (RWs) and two were…

This introductory article discusses following articles that consider how phonology interacts with other aspects of language and language learning and the role of this interaction in language acquisition. It addresses the interaction between phonology and the lexicon, phonological representations and morphophonemic alternations, and the interaction…

Drawing on archival data on the sound systems of five children ages 3 to 4 with normal development and 47 children ages 3 to 6 with phonological delay, one chain shift (interaction of phonological substitution errors) was identified in the speech of six children. Different derivational and constraint-based accounts of the chain shift were…

Presents a longitudinal case study of a child with a phonological disorder. Demonstrates an asymmetrical pattern of consonant cluster development with two different reduction strategies. Argues that the child first represents all clusters as single underlying units, later representing only certain clusters as single units. Formulated within…

This concluding article of an issue focused on the interaction of phonology with other aspects of language and language learning discusses findings that indicate the importance of considering these aspects when devising remediation strategies for a single domain. The need for future research is emphasized. (Contains 7 references.) (CR)