RecruitingBehavioural interventionInfant-Maternal Partnership and Cognitive Training Study for Preterm InfantsThis study will test the hypothesis that in preterm infants a caregiver-implemented early developmental intervention (EDI) using finger puppets to develop joint attention and encourage interactive communication with routine EDI care including Bookworm training compared with routine EDI care including Bookworm training alone will increase the Ages and Stages Questionnaire® score at 12 months corrected age.