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Showing 1 to 15 of 24 results Save | Export
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Godolphin, Peter J.; White, Ian R.; Tierney, Jayne F.; Fisher, David J. – Research Synthesis Methods, 2023
Estimation of within-trial interactions in meta-analysis is crucial for reliable assessment of how treatment effects vary across participant subgroups. However, current methods have various limitations. Patients, clinicians and policy-makers need reliable estimates of treatment effects within specific covariate subgroups, on relative and absolute…
Descriptors: Meta Analysis, Outcomes of Treatment, Medical Research, Comparative Analysis
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Hong, Chuan; Riley, Richard D.; Chen, Yong – Research Synthesis Methods, 2018
Multivariate meta-analysis, which jointly analyzes multiple and possibly correlated outcomes in a single analysis, is becoming increasingly popular in recent years. An attractive feature of the multivariate meta-analysis is its ability to account for the dependence between multiple estimates from the same study. However, standard inference…
Descriptors: Meta Analysis, Correlation, Multivariate Analysis, Research Methodology
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Wagner, Richard K.; Edwards, Ashley A.; Malkowski, Antje; Schatschneider, Chris; Joyner, Rachel E.; Wood, Sarah; Zirps, Fotena A. – New Directions for Child and Adolescent Development, 2019
Despite decades of research, it has been difficult to achieve consensus on a definition of common learning disabilities such as dyslexia. This lack of consensus represents a fundamental problem for the field. Our approach to addressing this issue is to use model-based meta-analyses and Bayesian models with informative priors to combine the results…
Descriptors: Dyslexia, Learning Disabilities, Meta Analysis, Bayesian Statistics
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Brunner, Martin; Keller, Lena; Stallasch, Sophie E.; Kretschmann, Julia; Hasl, Andrea; Preckel, Franzis; Lüdtke, Oliver; Hedges, Larry V. – Research Synthesis Methods, 2023
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…
Descriptors: Meta Analysis, Surveys, Research Design, Educational Research
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Nakamura, Pooja; Leyew, Zelealem; Molotsky, Adria; Ranjit, Varsha; Kamto, Kevin – Campbell Systematic Reviews, 2023
To address the evidence gap in making effective language of instruction (LOI) decisions, we propose a systematic review of the role of LOI choices in education programs and policies on literacy outcomes in multilingual educational contexts in low- and middle-income countries (LMICs). Grounded in a multidisciplinary theory of change (ToC)…
Descriptors: Second Language Learning, Second Language Instruction, Language of Instruction, Decision Making
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Lin, Lifeng; Chu, Haitao – Research Synthesis Methods, 2018
In medical sciences, a disease condition is typically associated with multiple risk and protective factors. Although many studies report results of multiple factors, nearly all meta-analyses separately synthesize the association between each factor and the disease condition of interest. The collected studies usually report different subsets of…
Descriptors: Bayesian Statistics, Multivariate Analysis, Meta Analysis, Correlation
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McArthur, Genevieve – Australian Journal of Learning Difficulties, 2022
Clinicians, teachers, and researchers have long suspected that there may be some kind of association between poor reading and emotional health. However, for many years, studies of this association were generally sporadic and poor in quality. This article outlines how -- over the last 5 years or so -- national and international associates of the…
Descriptors: Correlation, Reading Difficulties, Anxiety, Emotional Disturbances
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Brannick, Michael T.; Gültas, Mehmet – Research Synthesis Methods, 2017
We describe a meta-analytic scatterplot that indicates precision of points for two variables paired within studies; this is equivalent in form to a 'cross-hairs' plot used to portray specificity and sensitivity in diagnostic testing. At the user's discretion, the plot also displays boxplots for each of the X and Y variable distributions, means for…
Descriptors: Meta Analysis, Research Methodology, Graphs, Diagnostic Tests
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Jacobs, Perke; Viechtbauer, Wolfgang – Research Synthesis Methods, 2017
Meta-analyses are often used to synthesize the findings of studies examining the correlational relationship between two continuous variables. When only dichotomous measurements are available for one of the two variables, the biserial correlation coefficient can be used to estimate the product-moment correlation between the two underlying…
Descriptors: Sampling, Correlation, Meta Analysis, Measurement
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Rosenshine, Barak – Journal of Classroom Interaction, 2015
The first generations of researchers on classroom instruction were the pioneers who developed the term, categories, and concepts that were used to view and code what was happening during classroom lessons. The five pioneers in this first wave were Ned Flanders, Arno Bellack, B.O. Smith, Don Medley, and Harold Mitzel. Each of these pioneers used…
Descriptors: Change Agents, Educational Researchers, Educational Research, Lesson Observation Criteria
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Weltsek, Gustave J. – Arts Education Policy Review, 2019
This piece presents a theoretical exploration of the potential for the creation of policy that would inform the inclusion of arts and particularly theater courses in all community colleges. In April 2017, Fong et al. released a comprehensive meta-analysis that explored the relationship between psychosocial factors of self-perception and motivation…
Descriptors: Theater Arts, Educational Policy, Community Colleges, Meta Analysis
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Cahan, Sorel; Gamliel, Eyal – Practical Assessment, Research & Evaluation, 2011
Standardized effect size measures typically employed in behavioral and social sciences research in the multi-group case (e.g., [eta][superscript 2], f[superscript 2]) evaluate between-group variability in terms of either total or within-group variability, such as variance or standard deviation--that is, measures of dispersion about the mean. In…
Descriptors: Social Sciences, Effect Size, Evaluation, Behavioral Science Research
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Aloe, Ariel M.; Becker, Betsy Jane – Journal of Educational and Behavioral Statistics, 2012
A new effect size representing the predictive power of an independent variable from a multiple regression model is presented. The index, denoted as r[subscript sp], is the semipartial correlation of the predictor with the outcome of interest. This effect size can be computed when multiple predictor variables are included in the regression model…
Descriptors: Meta Analysis, Effect Size, Multiple Regression Analysis, Models
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Ferguson, Christopher J.; Kilburn, John – Psychological Bulletin, 2010
The issue of violent video game influences on youth violence and aggression remains intensely debated in the scholarly literature and among the general public. Several recent meta-analyses, examining outcome measures most closely related to serious aggressive acts, found little evidence for a relationship between violent video games and aggression…
Descriptors: Violence, Video Games, Effect Size, Aggression
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Gill, Brian; Bruch, Julie; Booker, Kevin – Regional Educational Laboratory Mid-Atlantic, 2013
States and school districts are exploring alternatives to state tests for measuring teachers' contributions to student learning. One approach applies statistical value-added methods to alternative student assessments such as commercially available tests and end-of course tests. The evidence suggests that these methods can reliably distinguish…
Descriptors: Teacher Evaluation, Teacher Competencies, Evaluation Methods, Educational Testing
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