Purpose: This study compared parents with histories of speech sound disorders (SSD) to parents without known histories on measures of speech sound production, phonological processing, language, reading, and spelling. Familial aggregation for speech and language disorders was also examined. Method: The participants were 147 parents of children with…

This study compared interstate variability of prevalence rates for special education categories from 1984 to 1985 through 2001 to 2002, using the coefficient of variation (CV), which is designed to compare variances when the means of the groups compared are radically different. The category of learning disabilities, presumed by many to be the most…

Children with developmental disabilities often have difficulty with joint attention that can affect more advanced communication skills. This study evaluated the complexity of child engagement behaviors demonstrated by twenty-five, pre-intentional children (age 9 to 25 months), who had developmental disabilities and were at risk for being…