Data for: Parents’ Repetition of Children’s Utterances is Associated with Child Vocabulary at 2 and 4 Years Old

The dataset contains scaled scores of child receptive and expressive language abilities as measured by the Bayley Scales of Infant Development (BSID-III) (Bayley, 2006) at 2-years old and by the Wechsler Preschool and Primary Scale of Intelligence (WPPSI-IV) (Wechsler, 2012) at 4-years-old, and measures of child language quantity (word tokens), quality (TTR/VOCD) and complexity (MLU) in interaction computed through the KIDEVAL command of CLAN. Also included are proportions of fathers’ and mothers’ repetition (overlap) in interaction with their children as computed through the CHIP command of CLAN.