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Book Title: ERIC ED508284: Overview of Measuring Effect Sizes
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Book Category: Models
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Language: english
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Post Date: 2025-04-13 15:41:53
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PDF Size: 0.25 MB
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Book Pages: 7
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ERIC ED508284: Overview of Measuring Effect Sizes
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Description of the Book:
The use of value-added models in education research has expanded rapidly. These models allow researchers to explore how a wide variety of policies and measured school inputs affect the academic performance of students. An important question is whether such effects are sufficiently large to achieve various policy goals. Judging whether a change in student achievement is important requires some meaningful point of reference. In certain cases a grade-equivalence scale or some other intuitive and policy relevant metric of educational achievement can be used. However, this is not the case with item response theory (IRT) scale-score measures common to the tests usually employed in value-added analyses. In such cases, researchers typically describe the impacts of various interventions in terms of “effect sizes”, although conveying the intuition of such a measure to policymakers often is a challenge. This paper provides an overview of measuring effect sizes and explains the effect of measurement error.
(Contains 2 tables and 6 notes
- Creator/s: ERIC
- Date: 2008-11
- Year: 2008
- Book Topics/Themes: ERIC Archive, Academic Achievement, Measures (Individuals), Measurement, Error of Measurement, Effect Size, Item Response Theory, Models, Educational Research, Measurement Techniques, Statistical Bias, Evaluation Research, Achievement Gains, Boyd, Don, Grossman, Pam, Lankford, Hamp, Loeb, Susanna, Wyckoff, Jim
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