References

Meets WWC evidence standards

Fischel, J. E., Bracken, S. S., Fuchs-Eisenberg, A., Spira, E. G., Katz, S., & Shaller, G. (2007). Evaluation of curricular approaches to enhance preschool early literacy skills. Journal of Literacy Research, 39(4), 471–501.

Preschool Curriculum Evaluation Research (PCER) Consortium. (2008). Doors to Discovery and Let’s Begin with the Letter People. In Effects of preschool curriculum programs on school readiness (pp. 85–98). Washington, DC: National Center for Education Research, Institute of Education Sciences, U.S. Department of Education.

Studies that fall outside the Early Childhood Education protocol or do not meet WWC evidence standards

Assel, M. A., Landry, S. H., Swank, P. R., & Gunnewig, S. (2007). An evaluation of curriculum, setting, and mentoring on the performance of children enrolled in pre-kindergarten. Reading & Writing, 20(5; 5), 463–494. The study does not meet WWC evidence standards because the overall attrition rate exceeds WWC standards for this area.

Hayes, K., Maddahian, E., & Fernandez, A. (2002). An evaluation of pre-K reading programs (Planning, Assessment, and Research Division Publication No. 137). Los Angeles: Los Angeles United School District. The study does not meet WWC evidence standards because the intervention and comparison groups are not shown to be equivalent at baseline.

Judkins, D., St. Pierre, R., Gutmann, B., Goodson, B., von Glatz, A., Hamilton, J., et al. (2008). A study of classroom literacy interventions and outcomes in Even Start (NCEE 2008-4028). Washington, DC: National Center for Education Evaluation and Regional Assistance, Institute of Education Sciences, U.S. Department of Education. The study does not meet WWC evidence standards because the intervention and comparison groups are not shown to be equivalent at baseline.