Developmental psychology focuses on how psychological constructs change with age. In cognitive development research, however, the specifics of this emergence is often underspecified. Researchers often provisionally assume linear growth by including chronological age as a predictor in regression models. In this work, we aim to evaluate this…

Linguistic interactions between parents and their children are frequently studied to investigate how children acquire language. From observations, researchers have identified interaction strategies that foster children's language development. In turn, interventions to support children's early language skills employ styles of interaction derived…

Background: Children who are bilingual and have speech sound disorder are likely to be under-referred, possibly due to confusion about typical speech acquisition in bilingual children. Aims: To investigate what is known about the impact of bilingualism on children's acquisition of speech in English to facilitate the identification and treatment of…

This article describes data requirements in Public Law 99-457; discusses issues confronting states as they develop data systems, such as the problems of comprehensiveness, incompatibility, and confidentiality; examines data on numbers of infants and toddlers receiving early intervention services; and explores applications of a national database on…

This information packet presents materials which focus on early identification of hearing impairment in infants and young children to prevent speech and language delays. A glossary of terms is followed by a summary of results of the National Institutes of Health Consensus Development Conference (1993) concerning early identification of hearing…