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Bell, Stephen H.; Puma, Michael J.; Cook, Ronna J.; Heid, Camilla A. – Society for Research on Educational Effectiveness, 2013
Access to Head Start has been shown to improve children's preschool experiences and school readiness on selected factors through the end of 1st grade. Two more years of follow-up, through the end of 3rd grade, can now be examined to determine whether these effects continue into the middle elementary grades. The statistical design and impact…
Descriptors: Evaluation Methods, Data Analysis, Randomized Controlled Trials, Sampling
Phelps, Geoffrey; Johnson, David; Carlisle, Joanne – Society for Research on Educational Effectiveness, 2009
The research reported in this paper is focused directly on assessing the validity of the "Teaching Knowledge about Reading and Reading Practices" (TKRRP) assessment. Following the recommendations of the Standards for Educational and Psychological Testing (APA/AERA, 1999), the authors see validation as a process of constructing an…
Descriptors: Video Technology, Grounded Theory, Teacher Characteristics, Knowledge Level