A Comparison of Conditional Standard Errors of Measurement for Scale Scores Under Binomial and Beta-Binomial Distribution

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Kaveh Somayeh; KHODAIE EBRAHIM; MUSAVI SEYED AMIN; MOGHADAMZADEH ALI; YOUNESI JALIL

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Journal: Educational Measurement Year:2018 | Volume:9 | Issue:33 Page(s): 53-78

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Title

A Comparison of Conditional Standard Errors of Measurement for Scale Scores Under Binomial and Beta-Binomial Distribution

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Keywords

beta-binomialQ1

binomialQ1

conditional standard error of measurementQ1

equipercentileQ1

normalizedQ1

Abstract

In order to facilitate the interpretation of raw scores, they are usually converted to scale scores. In some cases, these conversions are a series of nonlinear transformations that can affect the conditional standard error of measurement throughout the scale of score. Therefore, the purpose of this study was to introduce methods for calculating the conditional standard error of measurement based on the strong true score theory. Furthermore, comparison of normalized and equipercentile nonlinear transformations on the raw scores of the academic achievements of the graduates of mathematical sciences in 2014 and their effect on conditional standard error of measurement was also conducted. So, in order to achieve these purposes, we used a sample of 3943 high school graduates of Mathematics and Physics in 2014 who had participated in national university entrance examination in 2015 randomly selected by National Organization of Educational Testing. The conditional standard error of measurement under these transformations was estimated based on the binomial procedure of Brennan and Lee (1999) and Chang (2006) method based on the beta-binomial distribution. The results of this study indicated that the conditional standard error of measurement of the Chang was smoother than binomial procedure, but in both methods the estimated errors are larger for middle points and smaller for extreme points. Additionally, the conditional standard errors of measurement of equipercentile were always less than normalized tranformation, so the equipercentile method found to be better than normalized transformation.

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APA: Copy

Kaveh, Somayeh, KHODAIE, EBRAHIM, MUSAVI, SEYED AMIN, MOGHADAMZADEH, ALI, & YOUNESI, JALIL. (2018). A Comparison of Conditional Standard Errors of Measurement for Scale Scores Under Binomial and Beta-Binomial Distribution. TRAINING MEASUREMENT, 9(33 ), 53-78. SID. https://sid.ir/paper/214693/en

Vancouver: Copy

Kaveh Somayeh, KHODAIE EBRAHIM, MUSAVI SEYED AMIN, MOGHADAMZADEH ALI, YOUNESI JALIL. A Comparison of Conditional Standard Errors of Measurement for Scale Scores Under Binomial and Beta-Binomial Distribution. TRAINING MEASUREMENT[Internet]. 2018;9(33 ):53-78. Available from: https://sid.ir/paper/214693/en

IEEE: Copy

Somayeh Kaveh, EBRAHIM KHODAIE, SEYED AMIN MUSAVI, ALI MOGHADAMZADEH, and JALIL YOUNESI, “A Comparison of Conditional Standard Errors of Measurement for Scale Scores Under Binomial and Beta-Binomial Distribution,” TRAINING MEASUREMENT, vol. 9, no. 33 , pp. 53–78, 2018, [Online]. Available: https://sid.ir/paper/214693/en

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