Abstract
Parent well-being and quality of language input are well-established predictors of child language. Recently, child intersensory processing of faces and voices was found to predict child language. However, relations between child skills (e.g., intersensory processing) and parent factors (e.g., well-being, language input) remain unclear. This study assessed relations among parent well-being, quality of language input, child intersensory processing, and language in 97 children (51% female; 70% White, 65% Hispanic; 52% mothers with Bachelor's degree or higher) at 36 months. Greater well-being and quality of language input predicted greater intersensory face-voice matching, which predicted greater expressive (not receptive) vocabulary size at 36 months. This study demonstrates the importance of contributions of parent behaviors to child intersensory face-voice matching skills, and in turn, language.