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Hoyer, Annika; Hirt, Stefan; Kuss, Oliver – Research Synthesis Methods, 2018
Systematic reviews and meta-analyses are the cornerstones of evidence-based medicine and inform treatment, diagnosis, or prevention of individual patients as well as policy decisions in health care. Statistical methods for the meta-analysis of intervention studies are well established today. Meta-analysis for diagnostic accuracy trials has also…
Descriptors: Medicine, Evidence Based Practice, Research Methodology, Meta Analysis
Castillo, Felipe Aravena; Hallinger, Philip – Educational Management Administration & Leadership, 2018
The purpose of this systematic review was to further our understanding of educational leadership and management (EDLM) knowledge production in Latin America. We conducted a "topographical review" of 48 articles from Latin America published in eight "core" EDLM journals published between 1991 and 2017. Data analysis focused on…
Descriptors: Literature Reviews, Educational Administration, Leadership, Governance
Atalay, Ahmet – Universal Journal of Educational Research, 2018
The aim of this study was to examine the methodological tendencies in the doctorate theses which were prepared in the field of Sports Management in Turkish between 2007 and 2016 and which were open to access in the database of the Council of Higher Education (CHE) National Theses Center. In this context, 111 doctorate theses prepared in the last…
Descriptors: Content Analysis, Research Methodology, Research Design, Athletics
Makel, Matthew C.; Plucker, Jonathan A. – Educational Researcher, 2014
Despite increased attention to methodological rigor in education research, the field has focused heavily on experimental design and not on the merit of replicating important results. The present study analyzed the complete publication history of the current top 100 education journals ranked by 5-year impact factor and found that only 0.13% of…
Descriptors: Educational Research, Replication (Evaluation), Research Methodology, Journal Articles
Warne, Russell T.; Godwin, Lindsey R.; Smith, Kyle V. – Journal of Advanced Academics, 2013
Among some gifted education researchers, advocates, and practitioners, it is sometimes believed that there is a larger number of gifted people in the general population than would be predicted from a normal distribution (e.g., Gallagher, 2008; N. M. Robinson, Zigler, & Gallagher, 2000; Silverman, 1995, 2009), a belief that we termed the…
Descriptors: Gifted, Hypothesis Testing, Intelligence Quotient, Statistical Distributions
Cheek, Kim A. – Journal of Geoscience Education, 2010
Seventy-nine studies in geoscience conceptions appeared in peer-reviewed publications in English from 1982 through July 2009. Summaries of the 79 studies suggest certain recurring themes across subject areas: issues with terms, scale (temporal and spatial), role of prior experience, and incorrect application of everyday knowledge to geoscience…
Descriptors: Geology, Earth Science, Educational Research, Journal Articles

Lockett, Mary W. – Library and Information Science Research, 1989
Examines significant studies, published from 1934 through 1987, which have contributed to an understanding of three central concerns in the specialty associated with Bradford's law: the appropriate formulation for Bradford's law, the parameters of the Bradford distribution, and the Bradford distribution's relationships to other distributions. (79…
Descriptors: Bibliometrics, Models, Research Methodology, Statistical Distributions
Jones, Gail – 1989
A brief historical background of discriminant analysis is given, with a description of the variety of roles that discriminant analysis can perform. Focus is on the classification role of discriminant analysis and how it can be performed by using Fisher's classification functions or the canonical discriminant functions. A small hypothetical data…
Descriptors: Classification, Discriminant Analysis, Literature Reviews, Multivariate Analysis
Kennedy, Charlotte A. – 2002
The use of and emphasis on statistical significance testing has pervaded educational and behavioral research for many decades in spite of criticism by prominent researchers in this field. Much of the controversy is caused by lack of understanding or misinterpretations. This paper reviews criticisms of statistical significance testing and discusses…
Descriptors: Educational Research, Hypothesis Testing, Research Methodology, Sampling
Geisser, Seymour – 1985
This document reviews "The Collected Works of George E. P. Box," edited by G. C. Tiao. The two-volume collection is divided into five parts. Each part is prefaced with an introduction by a statistical researcher giving his view of the motivation and highlights of the papers presented. The 16 papers in Part 1 on statistical inference,…
Descriptors: Adults, Psychometrics, Research Methodology, Researchers

Krishnan, Parmeswara – Alberta Journal of Educational Research, 1995
Comments on some methodological limitations of the research base of "The Bell Curve": blind use of the normal distribution (bell curve); avoidance of nonnormal statistical distributions, which are more appropriate for some social and economic characteristics; copious use of percentiles and quintiles, inappropriate with nonnormal…
Descriptors: Data Interpretation, Intelligence Quotient, Multivariate Analysis, Research Methodology

Zimmerman, Donald W.; And Others – Journal of Experimental Education, 1992
D. W. Zimmerman argues that the interpretation by J. D. Gibbons and S. Chakraborti of recent simulation results and their recommendations are misleading and suggests use of an alternate test when homogeneity of variance and normality are violated. Gibbons and Chakraborti review their differences with Zimmerman's position. (SLD)
Descriptors: Computer Simulation, Research Methodology, Research Reports, Sample Size

Feingold, Alan – Review of Educational Research, 1993
The second approach used by L. V. Hedges and L. Friedman (1993) in their reanalysis of Feingold's earlier results is conceptually equivalent and yields results consistent with the original interpretation. The first method yields results that are discrepant. Analyses of variations in tail effect sizes are planned. (SLD)
Descriptors: Cognitive Tests, Effect Size, Females, Intelligence

Hedges, Larry V.; Friedman, Lynn – Review of Educational Research, 1993
Feingold's reply illustrates that his steps in characterizing tail effect sizes are not the calculations the authors had imagined. Attempting to reproduce Feingold's calculations, the authors still often find themselves in disagreement with interpretations Feingold has placed in his table. (SLD)
Descriptors: Cognitive Tests, Effect Size, Females, Intelligence

Hedges, Larry V.; Friedman, Lynn – Review of Educational Research, 1993
Analyzes effect sizes in tails of distribution of scores in Feingold's study of joint effects of gender differences in mean and variability on 28 cognitive-ability scales. Effect sizes are smaller than Feingold assumed. Evaluates joint effect of gender differences by number of males and females in extreme score ranges. (SLD)
Descriptors: Cognitive Tests, Effect Size, Equations (Mathematics), Females
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