Parents' speech to toddlers: the effect of play context.
D000328:Adult; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology*; D010988:Play and Playthings; D014705:Verbal Behavior