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Analysis of error source in subjective evaluation results on Taekwondo Poomsae: Application of generalizability theory
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 Title & Authors
Analysis of error source in subjective evaluation results on Taekwondo Poomsae: Application of generalizability theory
Cho, Eun Hyung;
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 Abstract
This study aims to apply the G-theory for estimation of reliability of evaluation scores between raters on Taekwondo Poomsae rating categories. Selecting a number of game days and raters as multiple error sources, we analyzed the error sources caused by relative magnitude of error variances of interaction between the factors and proceeded with D-study based on the results of G-study for optimal determination of measurement condition. The results showed below. The estimated outcomes of variance component for accuracy among the Taekwondo Poomsae categories with G-theory showed that impact of error was the biggest influence factor in raters conditions and in order of interaction in subjects and between subjects, also impact of variance component estimation error on expression category was the major influence factor in interaction and in order of the between subjects and raters. Finally, the result of generalizability coefficient estimation via D-study showed that measurement condition of optimal level depend on the number of raters was 8 persons of raters on accuracy category, and stable reliability on expression category was gained when the raters were 7 persons.
 Keywords
Generalizability theory;g-coefficient;multiple source error;reliability;variance component;
 Language
Korean
 Cited by
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