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Wasik, Barbara A.; Hindman, Annemarie H. – Journal of Educational Psychology, 2011
In a randomized control study, Head Start teachers were assigned to either an intervention group that received intensive, ongoing professional development (PD) or to a comparison group that received the "business as usual" PD provided by Head Start. The PD intervention provided teachers with conceptual knowledge and instructional…
Descriptors: Video Technology, Educational Strategies, Intervention, Alphabets
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Powell, Douglas R.; Diamond, Karen E.; Burchinal, Margaret R.; Koehler, Matthew J. – Journal of Educational Psychology, 2010
Effects of a 1-semester professional development (PD) intervention that included expert coaching with Head Start teachers were investigated in a randomized controlled trial with 88 teachers and 759 children. Differential effects of technologically mediated (remote) versus in-person (on-site) delivery of individualized coaching with teachers also…
Descriptors: Intervention, Oral Language, Disadvantaged Youth, Emergent Literacy