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Boldt, R. F. – Educational and Psychological Measurement, 1974
Descriptors: Comparative Testing, Equated Scores, National Norms, Raw Scores
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Nugent, William R. – Educational and Psychological Measurement, 2006
One of the most important effect sizes used in meta-analysis is the standardized mean difference (SMD). In this article, the conditions under which SMD effect sizes based on different measures of the same construct are directly comparable are investigated. The results show that SMD effect sizes from different measures of the same construct are…
Descriptors: Effect Size, Meta Analysis, True Scores, Error of Measurement
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LeGagnoux, Gerald; And Others – Educational and Psychological Measurement, 1990
The relationship of retest effects from pretest to posttest 2 to 4 weeks later was studied for 2,014 elementary school children (second through sixth graders) taking a battery of 26 multifactor aptitude tests--the Structure of Intellect Learning Abilities Test. Implications of score gains are discussed for age and gender groups. (SLD)
Descriptors: Achievement Gains, Age Differences, Aptitude Tests, Comparative Testing