This study begins with a discussion of what a phonological rule is, and how the term has been used in previous investigations. The relation between the child's phonological system and the adult's system, the relationship between discrimination and production, and the viability of positing underlying forms for children's words are also discussed.…

A variety of types of evidence are examined to help determine the true nature of "deep structure" and what, if any, implications this has for linguistic theory as well as culture theory generally. The evidence accumulated over the past century on the nature of phonetic and phonemic systems is briefly discussed, and the following areas of…