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Watts, Tyler W.; Clements, Douglas H.; Sarama, Julie; Wolfe, Christopher B.; Spitler, Mary Elaine; Bailey, Drew H. – Journal of Research on Educational Effectiveness, 2017
Early educational intervention effects typically fade in the years following treatment, and few studies have investigated why achievement impacts diminish over time. The current study tested the effects of a preschool mathematics intervention on two aspects of children's mathematical development. We tested for separate effects of the intervention…
Descriptors: Mathematics Education, Program Effectiveness, Mathematics Skills, Correlation
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Sarama, Julie; Clements, Douglas H.; Wolfe, Christopher B.; Spitler, Mary Elaine – Journal of Research on Educational Effectiveness, 2012
We used a cluster randomized trial to evaluate the effectiveness of a research-based model for scaling up educational interventions, focusing on the persistence of effects with and without a follow-through intervention. The instantiation of the Technology-enhanced, Research-based, Instruction, Assessment, and professional Development (TRIAD) model…
Descriptors: Intervention, Kindergarten, Mathematics Instruction, Educational Technology
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Clements, 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