在口头阅读流度评分中纳入校准错误
Xin Qiao1, Akihito Kamata2, Cornelis Potgieter3,4
1University of South Florida, Tampa, Florida, USA.
概括
口语阅读流性 (ORF) 评估中的校准错误可能会导致分数偏差. 对这些错误的计算为ORF得分提供了更准确的标准错误 (SE),特别是在较小的校准样本中.
科学领域:
- 教育测量教育的测量
- 心理测量 心理测量 心理测量
- 阅读流性研究 阅读流性研究
背景情况:
- 口头阅读流性 (ORF) 评估对于识别阅读困难的读者和评估教育干预措施至关重要.
- 当前的评分方法通常将校准通道参数视为固定的,可能会忽视校准错误.
- 未计入的校准错误可能导致偏差的ORF分数和低估的标准错误 (SE).
研究的目的:
- 开发和评估一种用于将校准错误纳入ORF评估的潜在变量得分的方法.
- 为了获得准确的SE,ORF得分可以考虑校准不确定性.
- 在不同的条件下,评估校准错误对得分估计和SE的影响.
主要方法:
- 使用了一种方法,将校准错误集成到隐性变量得分计算中.
- 采用三角法来推导ORF得分的SE,明确包括校准不确定性.
- 进行了模拟研究,以检查隐性变量和ORF分数的点估计和SE的恢复.
主要成果:
- 忽视校准错误导致潜在变量得分和ORF得分都低估了SE.
- 当校准样本规模较小时,对SE的低估更加明显.
- 拟议的方法通过考虑校准不确定性来证明SE估计的准确性有所提高.
结论:
- 在ORF评分中承认和纳入校准错误至关重要,以获得可靠的估计.
- 低估SE可以对干预评估和读者选产生重大影响.
- 未来的ORF评估开发应该优先考虑解决校准不确定性的方法,以提高得分精度.
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