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Custom Contrast Testing: Current Trends and a New Approach

机译:自定义对比度测试:当前趋势和新方法

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摘要

Contrast analysis has become prevalent in experimental accounting research since Buckless and Ravenscroft (1990) introduced it to the accounting literature over 25 years ago. Since its initial introduction, the scope of contrast testing has expanded, yet guidance as to the most appropriate methods of specifying, conducting, interpreting, and exhibiting these tests has not. We survey the use of contrast analysis in the recent literature and propose a three-part testing approach that provides a more comprehensive picture of contrast results. Our approach considers three pieces of complementary evidence: the visual evaluation of fit, traditional significance testing, and quantitative evaluation of the contrast variance residual. Our measure of the contrast variance residual, q(2), is proposed for the first time in this work. After proposing our approach, we walk through six common contrast testing scenarios where current practices may fall short and our approach may guide researchers. We extend Buckless and Ravenscroft (1990) and contribute to the accounting research methods literature by documenting current contrast analysis practices that result in elevated Type I error and by proposing a potential solution to mitigate these concerns.
机译:自从Buckless和Ravenscroft(1990)在25年前将对比度分析引入会计文献以来,对比度分析已在实验会计研究中变得普遍。自从最初引入对比测试以来,它的范围已经扩大,但是对于指定,进行,解释和展示这些测试的最合适方法的指导却没有。我们调查了最近文献中对比分析的使用,并提出了一个由三部分组成的测试方法,该方法可提供对比结果的更全面描述。我们的方法考虑了三项补充证据:拟合的视觉评估,传统显着性检验以及对比方差残差的定量评估。我们在这项工作中首次提出了对对比度方差残差q(2)的测量。在提出我们的方法之后,我们将介绍六个常见的对比测试方案,在这些方案中,当前的实践可能会不足,我们的方法可能会指导研究人员。我们扩展了Buckless和Ravenscroft(1990),并通过记录当前导致I型错误增加的对比分析实践并提出了减轻这些担忧的潜在解决方案,为会计研究方法文献做出了贡献。

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