Descriptive analyses of socially important or theoretically interesting phenomena and trends are a vital component of research in the behavioral, social, economic, and health sciences. Such analyses yield reliable results when using representative individual participant data (IPD) from studies with complex survey designs, including educational…

The main aim of this research is to display research trends in studies on augmented reality (AR) in teaching English as a foreign language by using bibliometric mapping and content analysis. For this purpose, 64 studies in total published up to 2019 were accessed for bibliometric analysis. In addition, 49 articles published between 2007 and 2019…

To plan group-randomized trials where treatment conditions are assigned to schools, researchers need design parameters that provide information about between-school differences in outcomes as well as the amount of variance that can be explained by covariates at the student (L1) and school (L2) levels. Most previous research has offered these…

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…

This paper reports on a content analysis of 633 biology education research [BER] papers published by Turkish science educators in national and international journals. The findings indicate that more research has been undertaken in environment and ecology, the cell and animal form and functions. In addition learning, teaching and attitudes were in…

Scientifically based research used to inform evidence based school reform efforts has been required by the federal government in order to receive grant funding since the reenactment of No Child Left Behind (2002). Educational evaluators are thus faced with the challenge to use rigorous research designs to establish causal relationships. However,…

The aim of the study is to determine trends in Turkish Mathematics Education on the basis of both master and doctoral theses involved. The researchers reviewed the online databases of the Higher Education Council and Proquest as well as the library of each university and examined 284 graduate theses in regard to research topic, research methods,…

This article examines theoretical and empirical issues related to the statistical power of impact estimates under clustered regression discontinuity (RD) designs. The theory is grounded in the causal inference and hierarchical linear modeling literature, and the empirical work focuses on common designs used in education research to test…

This self-contained and self-instructional unit is intended for use by evaluation and development personnel and by students in introductory research and evaluation courses. The unit contains a discussion of the regression employing graphic illustrations with actual data. The user is introduced to the regression effect in the single group…

With the growing interest in comparing student achievement state by state, there is a need to develop better techniques for making such comparisons. Approaches available now, particularly the use of Scholastic Aptitude Test (SAT) and American College Test (ACT) scores, have obvious shortcomings but nonetheless continue to be prominent because…

Efforts have been made to increase the dissemination and use of data generated by the National Assessment of Educational Progress (NAEP). Potential users include those concerned with curriculum and methods evaluation, public policymakers, and researchers. NAEP can provide data for curriculum evaluation, including item analysis data which assist in…

The content of this book is embedded in two historical frameworks. The first is the history of American education in which the basic underlying premise is that education is a means of achieving equality in our society. The other is the development of educational research in the United States which was founded on a deep conviction that one could…

Ten studies investigating the relationship between instructional time and achievement on elementary school reading and mathematics tests were reviewed. The studies involved general classroom research, instructional time research, and attention research. The review indicated that the relationship between academic achievement and instructional time…

The focus of future Follow Through research should be oriented toward showing what can be done in order to offer information to both federal and local planners on which systems of curriculum design, classroom management, and parent involvement appear to be most effective. To assure this goal, the issues of program efficacy and implementation…

A compilation of 109 abstracts from the "Research and Development Report Series," is presented based on R&D projects conducted during 1963-1981 by Educational Testing Service on behalf of the College Entrance Examination Board. Project titles and authors include the following: "The Effect of Special Preparation on SAT Verbal…