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References


Met WWC evidence standards

Starkey, P., & Klein, A. (2005). A longitudinal study of the effects of a pre-kindergarten mathematics curriculum on low-income children's mathematical knowledge (From PCER 2002: Grantee Annual Progress Report (2005), IES Grant No. R305J020026). Berkeley: University of California.

Met WWC evidence standards with reservations

Clements, D. H., & Sarama, J. (2006, June). Scaling up the implementation of a pre-kindergarten mathematics curriculum: The Building Blocks curriculum. Paper presented at the Institute of Education Sciences Research Conference, Washington, D. C.

Did not meet WWC evidence screens

Starkey, P., Klein, A., & Wakeley, A. (2004). Enhancing young children's mathematical knowledge through a pre-kindergarten mathematics intervention. Early Childhood Research Quarterly, 19 (1), 99–120. 10

Additional source:
Klein, A., & Starkey, P. (2004). Fostering preschool children's mathematical knowledge: Findings from the Berkeley Math Readiness Project. In D. H. Clements, J. Sarama & A. -M. DiBiase (Eds.), Engaging young children in mathematics: Standards for early childhood mathematics education (pp. 343–360). Mahwah, NJ: Lawrence Erlbaum Associates.

10 Lack of evidence for baseline equivalence: the study, which used a quasi-experimental design, did not establish that the comparison group was equivalent to the intervention group at baseline.