This study examined the impact of Project STAR (Sit Together and Read) on literacy skills of preschool students. Project STAR is a program in which teachers read books aloud to their students and use instructional techniques designed to encourage children to pay attention to print within storybooks. Results of the study indicated a causal relationship between early print knowledge and later literacy skills.
Increasing Young Children's Contact with Print During Shared Reading: Longitudinal Effects on Literacy Achievement
Piasta, S.B., Justice, S. B., Justice, L. M., McGinty, A. S., & Kaderavek, J. N. (2012). Increasing young children's contact with print during shared reading: Longitudinal effects on literacy achievement. Child Development, 83(3), 810-820.
Developing Early Literacy: Report of the National Early Literacy Panel
National Center for Family Literacy. (2009). Developing Early Literacy: Report of the National Early Literacy Panel. Washington, DC: National Institute for Literacy.
The National Early Literacy Panel looked at published research concerning children's early literacy skills and reports on which early skills or abilities could properly be said to be the precursors of later literacy achievement.