This article reviews recent research on phonological development and characteristics associated with different forms of delay. Language-delayed students are considered categorizable at 24 months as either "late talkers" with no major deviations from patterns of normal acquisition or disordered students whose developmental patterns are markedly…

This article reviews recent investigations of the development of phonology, morphology, semantics, and pragmatics in the development of speech and language by African American children. Clinical implications are offered to aid the distinction between normal language development using features of African American English and language disorders.…