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Direct linkKelcey, Ben; Spybrook, Jessaca; Phelps, Geoffrey; Jones, Nathan; Zhang, Jiaqi – Journal of Experimental Education, 2017
We develop a theoretical and empirical basis for the design of teacher professional development studies. We build on previous work by (a) developing estimates of intraclass correlation coefficients for teacher outcomes using two- and three-level data structures, (b) developing estimates of the variance explained by covariates, and (c) modifying…
Descriptors: Faculty Development, Research Design, Teacher Effectiveness, Correlation
Download full textE. C. Hedberg – Grantee Submission, 2016
Background: There is an increased focus on randomized trials for proximal behavioral outcomes in early childhood research. However, planning sample sizes for such designs requires extant information on the size of effect, variance decomposition, and effectiveness of covariates. Objectives: The purpose of this article is to employ a recent large…
Descriptors: Randomized Controlled Trials, Kindergarten, Children, Longitudinal Studies
Miciak, Jeremy; Taylor, W. Pat; Stuebing, Karla K.; Fletcher, Jack M.; Vaughn, Sharon – Journal of Research on Educational Effectiveness, 2016
An appropriate estimate of statistical power is critical for the design of intervention studies. Although the inclusion of a pretest covariate in the test of the primary outcome can increase statistical power, samples selected on the basis of pretest performance may demonstrate range restriction on the selection measure and other correlated…
Descriptors: Educational Research, Research Design, Intervention, Statistical Analysis
Houghton, Frank; Toms, Jeremy; Meratnia, Ghazal; Loney, Krista; Hopkins, Edward; Del Monte, Katie – Health Education & Behavior, 2017
Entertainment-education has proved to be an engaging medium through which to explore health and social issues in populations. Given the popularity of the zombie theme in popular culture it is no surprise therefore that the Centers for Disease Control and Prevention adopted this theme in an effort to engage youth and young adults in emergency…
Descriptors: Health, Public Health, Emergency Programs, Natural Disasters
May, Henry; Sirinides, Philip; Gray, Abby; Davila, Heather Goldsworthy; Sam, Cecile; Blalock, Toscha; Blackman, Horatio; Anderson-Clark, Helen; Schiera, Andrew J. – Society for Research on Educational Effectiveness, 2015
As part of the 2010 economic stimulus, a $55 million "Investing in Innovation" (i3) grant from the US Department of Education was awarded to scale up Reading Recovery across the nation. This paper presents the final round of results from the large-scale, mixed methods randomized evaluation of the implementation and impacts of Reading…
Descriptors: Reading Programs, Program Evaluation, Reading Achievement, Mixed Methods Research
Gorard, Stephen; Siddiqui, Nadia; See, Beng Huat – Education Endowment Foundation, 2014
Response to Intervention (RTI) is a targeted programme that uses a tiered approach to identify the needs of low achieving pupils. The approach begins with whole class teaching (Tier 1), followed by small group tuition (Tier 2) for those who need more attention, and one to one tutoring (Tier 3) for those who do not respond to the small group…
Descriptors: Response to Intervention, Program Evaluation, Elementary School Students, Grade 5
