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Direct linkHedges, Larry V.; Schauer, Jacob M. – Journal of Educational and Behavioral Statistics, 2019
The problem of assessing whether experimental results can be replicated is becoming increasingly important in many areas of science. It is often assumed that assessing replication is straightforward: All one needs to do is repeat the study and see whether the results of the original and replication studies agree. This article shows that the…
Descriptors: Replication (Evaluation), Research Design, Research Methodology, Program Evaluation
Hedges, Larry V.; Schauer, Jacob M. – Grantee Submission, 2019
The problem of assessing whether experimental results can be replicated is becoming increasingly important in many areas of science. It is often assumed that assessing replication is straightforward: All one needs to do is repeat the study and see whether the results of the original and replication studies agree. This article shows that the…
Descriptors: Replication (Evaluation), Research Design, Research Methodology, Program Evaluation
Hedges, Larry V. – Journal of Educational and Behavioral Statistics, 2007
Multisite research designs involving cluster randomization are becoming increasingly important in educational and behavioral research. Researchers would like to compute effect size indexes based on the standardized mean difference to compare the results of cluster-randomized studies (and corresponding quasi-experiments) with other studies and to…
Descriptors: Journal Articles, Effect Size, Computation, Research Design
Peer reviewedGreenwald, Rob; Hedges, Larry V.; Laine, Richard – Review of Educational Research, 1996
Supports the findings of a meta-analysis that demonstrates that student achievement is related to the availability of resources, disagreeing with criticisms of method and sample selection made by E. Hanushek (1996). (SLD)
Descriptors: Academic Achievement, Educational Finance, Elementary Secondary Education, Expenditures
