关键词:信度,整体量表,分项量表,多层面Rasch模型,EFL作文评分," /> 关键词:信度,整体量表,分项量表,多层面Rasch模型,EFL作文评分,"/> Key Words: reliability,holistic scales,analytic scales,Many-facet Rasch Model,EFL essay rating,"/> 整体与分项量表的使用对EFL作文评分信度的影响
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整体与分项量表的使用对EFL作文评分信度的影响
The Effects of the Use of Holistic and Analytic Scales on the Reliability of EFL Essay Scoring
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摘要 
摘要:评分量表代表了测试构念的操作化定义,是写作评分的重要组成部分。为了解整体和分项量表对EFL作文评分信度的影响,本研究对9名评分员对同样50份作文使用整体和分项量表所作的评分进行了多层面Rasch模型分析。研究发现,分项量表的使用能够使评分员对考生的英语写作能力作出更加细致和准确的区分,而其严厉度上的差异对考生能力估计的影响也更小。同时,较之整体量表,分项量表各分数间的区别也更加明显。总的来说,分项量表的使用对EFL写作测试的评分信度能产生更为有益的影响。
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李航
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Abstract
Abstract: As realizations of theoretical constructs, rating scales play an important role in the scoring of compositions. In order to understand the effect of the use of holistic and analytic scales on the reliability of EFL essay rating, the present study, through the application of Many-facet Rasch Model, analyzed the scores awarded by 9 raters on the same set of 50 EFL essays while using both a holistic and an analytic scale. Results showed that the use of the analytic scale led to finer distinctions among examinees in terms of their English writing ability. Meanwhile, the impact of the variability in raters’ severity on examinee ability estimates was also smaller with the use of the analytic scale. What’s more, while there was a lack of clear distinction between most adjacent holistic scores, this problem was not detected for the analytic scale categories. On the whole, the use of the analytic scale led to more favorable impact on the reliability of EFL essay rating.
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引用本文:   
李航. 整体与分项量表的使用对EFL作文评分信度的影响[J]. 外语与外语教学, 2015, 0(02): 45-.
LI HANG. The Effects of the Use of Holistic and Analytic Scales on the Reliability of EFL Essay Scoring. Foreign Language and Their Teaching, 2015, 0(02): 45-.
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