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Peer reviewed
Direct linkClements, Douglas H.; Sarama, Julie; Wolfe, Christopher B.; Spitler, Mary Elaine – American Educational Research Journal, 2013
Using a cluster randomized trial design, we evaluated the persistence of effects of a research-based model for scaling up educational interventions. The model was implemented in 42 schools in two city districts serving low-resource communities, randomly assigned to three conditions. In pre-kindergarten, the two experimental interventions were…
Descriptors: Mathematics Instruction, Intervention, Early Childhood Education, Experimental Groups
