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Direct linkOpper, Isaac M. – RAND Corporation, 2020
Researchers often include covariates when they analyze the results of randomized controlled trials (RCTs), valuing the increased precision of the estimates over the potential of inducing small-sample bias when doing so. In this paper, we develop a sufficient condition which ensures that the inclusion of covariates does not induce small-sample bias…
Descriptors: Artificial Intelligence, Man Machine Systems, Educational Technology, Technology Uses in Education
Peer reviewedSchacter, John; Jo, Booil – Mathematics Education Research Journal, 2017
With a randomized field experiment of 433 preschoolers, we tested a tablet mathematics program designed to increase young children's mathematics learning. Intervention students played Math Shelf, a comprehensive iPad preschool and year 1 mathematics app, while comparison children received research-based hands-on mathematics instruction delivered…
Descriptors: Randomized Controlled Trials, Preschool Education, Handheld Devices, Telecommunications
Christmann, Edwin P. – E-Learning and Digital Media, 2017
This study compared the achievement of male and female students who were enrolled in an online univariate statistics course to students enrolled in a traditional face-to-face univariate statistics course. The subjects, 47 graduate students enrolled in univariate statistics classes at a public, comprehensive university, were randomly assigned to…
Descriptors: Online Courses, Conventional Instruction, Academic Achievement, Graduate Students
Download full textIrving, Karen E.; Pape, Stephen J.; Owens, Douglas T.; Abrahamson, Louis; Silver, David; Sanalan, Vehbi A. – Journal of Computers in Mathematics and Science Teaching, 2016
Findings from three years of a longitudinal randomized control trial involving a national U.S. sample of Algebra 1 teachers and students are reported. The study examines the effects of a connected classroom technology (CCT) professional development and classroom intervention on student achievement when compared to classroom instruction with…
Descriptors: Algebra, Mathematics Achievement, Longitudinal Studies, Randomized Controlled Trials
Cheung, Alan; Slavin, Robert – Society for Research on Educational Effectiveness, 2016
As evidence-based reform becomes increasingly important in educational policy, it is becoming essential to understand how research design might contribute to reported effect sizes in experiments evaluating educational programs. The purpose of this study was to examine how methodological features such as types of publication, sample sizes, and…
Descriptors: Effect Size, Evidence Based Practice, Educational Change, Educational Policy
Abrami, Philip; Borohkovski, Eugene; Lysenko, Larysa – Journal of Interactive Learning Research, 2015
This meta-analysis summarizes research on the effects of a comprehensive, interactive web-based software (AXXX) on the development of reading competencies among kindergarteners and elementary students. Findings from seven randomized control trials and quasi-experimental studies undertaken in a variety of contexts across Canada, Australia and Kenya…
Descriptors: Foreign Countries, Kindergarten, Young Children, Computer Assisted Instruction
