In a sample of 46 children aged 4-7 years with Autism Spectrum Disorder (ASD) and intelligible speech, there was no statistical support for the hypothesis of concomitant Childhood Apraxia of Speech (CAS). Perceptual and acoustic measures of participants' speech, prosody, and voice were compared with data from 40 typically-developing children, 13…

A study of 35 3-year-olds followed since infancy in a university-affiliated pediatrics clinic and 50 Native American children followed since infancy in a tribal health clinic found early recurrent otitis media with effusion was only associated with increased risk for speech disorder in the Native American children. (Contains extensive references.)…

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…