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Davidson, Marcia R.; Fields, Matthew K.; Yang, Jiaxiu – Journal of Research on Educational Effectiveness, 2009
In this 1-year experimental study of 254 students across 27 high-poverty preschool classrooms in an urban setting in the northeast, use of a technology-based prekindergarten literacy curriculum in addition to the district curriculum was compared with the use of the district curriculum alone. Results indicated no main effects for the experimental…
Descriptors: Experimental Curriculum, Beginning Reading, Phonological Awareness, Program Implementation
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Zvoch, Keith; Letourneau, Lawrence E.; Parker, Robert P. – American Journal of Evaluation, 2007
The evaluation of an intervention delivered across multiple treatment sites presents a unique opportunity for evaluators to gauge the manner and degree to which the "impact" of treatment varies across implementation conditions and different target populations. However, the availability of implementation data for each treatment site, while…
Descriptors: Program Implementation, Evaluation Methods, Models, Instructional Effectiveness