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Opper, 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
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Schacter, 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
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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
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McLeod, Sharynne; Baker, Elise; McCormack, Jane; Wren, Yvonne; Roulstone, Sue; Crowe, Kathryn; Masso, Sarah; White, Paul; Howland, Charlotte – Journal of Speech, Language, and Hearing Research, 2017
Purpose: The aim was to evaluate the effectiveness of computer-assisted input-based intervention for children with speech sound disorders (SSD). Method: The Sound Start Study was a cluster-randomized controlled trial. Seventy-nine early childhood centers were invited to participate, 45 were recruited, and 1,205 parents and educators of 4- and…
Descriptors: Randomized Controlled Trials, Program Effectiveness, Computer Assisted Instruction, Intervention
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O'Callaghan, Paul; McIvor, Aimee; McVeigh, Claire; Rushe, Teresa – British Journal of Educational Psychology, 2016
Background: Many school-based interventions are being delivered in the absence of evidence of effectiveness (Snowling & Hulme, 2011, "Br. J. Educ. Psychol., 81," 1). Aims: This study sought to address this oversight by evaluating the effectiveness of the commonly used the Lexia Reading Core5 intervention, with 4- to 6-year-old pupils…
Descriptors: Program Effectiveness, Reading Programs, Foreign Countries, Intervention
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Irving, 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