This study provides a clinical profile of 178 children (ages 3-6) with developmental phonological disorders, based on prior reports and new data on 64 children. Data discussed include gender, age, and severity; speech profiles; prosody-voice profiles; causal-correlates profiles; and a prevalence profile. (Author/JDD)

Ten preschool children with developmental phonological disorders were followed for seven years. Analyses characterize the sequence, rates, and error patterns of long-term speech-sound normalization in relation to developmental perspectives. Findings support the hypothesis of a critical period for speech-sound development, with long-term…

A conceptual framework for short-term and long-term speech-sound normalization research is presented, and 1-year normalization outcomes for the 54 children described in EC 609 708 are reported. Although certain individual speech variables were significantly associated with normalization, there were no speech, prosody-voice, or risk-factor…