This study applied multilevel modeling to examine the relationship between the percentage of children with mild/moderate disabilities in classrooms and children's language and literacy achievement over an academic year. The sample included 516 preschool children (mean age = 52.3 months, SD = 6.3) in 75 classrooms; 42% of the children had…

Peer-effects research finds that preschool children's language growth is associated with classmates' skills and that children with disabilities especially benefit from classmates with higher skills. The current study estimates the amount of "peer language resources" individual children access through their classroom-based peer social…