| 语言测试评估中的信度指标及其获取方法 |
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| 引用本文： | 薛荣. 语言测试评估中的信度指标及其获取方法[J]. 江苏工业学院学报(社会科学版), 2006, 7(3): 70-72,38 |
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| 作者姓名： | 薛荣 |
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| 作者单位： | 江苏工业学院外语系 江苏常州213164 |
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| 摘 要： | 信度指的是测验结果的一致性程度或者可靠性程度,主要有重测信度、折半信度、复本信度、布郎校正公式和克隆巴赫提出的a系数等。信度指标的获取方法主要有:用Spearm an-B row n P rophecy Form u la计算折半信度;用克朗巴赫(C ronbach)的a系数估算信度;用库德.理查逊21(K uder R ichardson form u la 21)公式计算信度;用库德.理查逊20(K uder R ichardson form u la20)公式计算信度系数。分析和研究信度的计算方法,理解信度的含义,正确运用信度的概念,对提高语言测试的质量,改进语言测试设计十分重要。
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| 关 键 词： | 语言测试 信度 效度 克隆巴赫a系数 标准测量误差 |
| 文章编号： | 1672-9048(2006)03-0070-03 |
| 修稿时间： | 2006-04-28 |
The Calculation of Reliability in the Evaluation of Language Tests |
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| XUE Rong. The Calculation of Reliability in the Evaluation of Language Tests[J]. Journal of Jiangsu Polyetchnic University(Social Science Edition), 2006, 7(3): 70-72,38 |
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| Authors: | XUE Rong |
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| Abstract: | In general,test reliability is defined as the extent to which the test results can be considered consistent and stable.The very difficulty of measuring mental traits explains why consistency is of particular concern to language testers.This paper discusses the criterion for the evaluation of language tests and the definition and types of reliability.Also the author explains in detail the calculation and interpretation of reliability coefficients to examine the consistency of measurement. |
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| Keywords: | language testing reliability validity Cronbach standard error of measurement |
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