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In 20251
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Benchmarking2
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Effect Size2
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Journal of Educational and…1
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Elizabeth Tipton2
Kaitlyn G. Fitzgerald2
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Using Extant Data to Improve Estimation of the Standardized Mean Difference
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Kaitlyn G. Fitzgerald; Elizabeth Tipton – Journal of Educational and Behavioral Statistics, 2025
This article presents methods for using extant data to improve the properties of estimators of the standardized mean difference (SMD) effect size. Because samples recruited into education research studies are often more homogeneous than the populations of policy interest, the variation in educational outcomes can be smaller in these samples than…
Descriptors: Data Use, Computation, Effect Size, Meta Analysis
Using Extant Data to Improve Estimation of the Standardized Mean Difference
Peer reviewed Peer reviewed
Direct linkDirect link
Kaitlyn G. Fitzgerald; Elizabeth Tipton – Grantee Submission, 2024
This article presents methods for using extant data to improve the properties of estimators of the standardized mean difference (SMD) effect size. Because samples recruited into education research studies are often more homogeneous than the populations of policy interest, the variation in educational outcomes can be smaller in these samples than…
Descriptors: Data Use, Computation, Effect Size, Meta Analysis