1. Bakeman, R., & Gottman, J. M. (1986). Observing interactions: An introduction to sequential analysis. NewYork, NY: Cambridge University Press.
2. Barr, R. G., Rivara, F. P., Barr, M., Cummings, P., Taylor, J., Lengua, L. J., & Meredith-Benitz, E. (2009). Effectiveness of educational materials designed to change knowledge and behaviors regarding crying and shaken-baby syndrome in mothers of newborns: A randomized controlled trial. Pediatrics, 123, 972–980.
3. Boyle, C. A., Boulet, S., Schieve, L. A., Cohen, R. A., Blumberg, S. J., Yeargin-Allsop, M., et al. (2011). Trends in the prevalence of developmental disabilities in US children, 1997–2008. Pediatrics, 127, 1034–1042.
4. Centers for Disease Control and Prevention. (2013). Learn the signs. Act early. www.cdc.gov/actearly . Accessed March 4, 2013.
5. Lutzker, J. R., & Bigelow, K. M. (2002). Reducing child maltreatment a guidebook for parent services. New York, NY: Guilford Press.