Multidimensional item response theory and the force and motion conceptual evaluation
Multidimensional item response theory and the force and motion conceptual evaluation
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多维项目反应理论与力和运动概念评估
DOI：
10.1103/physrevphyseducres.15.020141
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发表时间：
2019
影响因子：
3.1
通讯作者：
Stewart, John
中科院分区：
文献类型：
--
作者：
Yang, Jie;Zabriskie, Cabot;Stewart, John
许多研究都对力概念量表（FCI）的结构和性质进行了研究，但对力和运动概念评价（FMCE）的研究却很少。本研究应用多维项目反应理论（MIRT）对FMCE的后测反应进行了分析。探索性因素分析表明，5，9和10因素模型优化了一些拟合统计量。FMCE使用广泛的项目块分成具有共同词干的组;这些块在大多数模型中被考虑在一起。一个验证性的分析，它限制了MIRT模型的理论模型，从专家的解决方案，产生了一个模型，只需要8个原则，基本的推理步骤。这比以前的研究在FCI中确定的19项原则少得多。相关分析也表明，这两种仪器是非常不同的。减少数量的原则和重复的项目，使用一个单一的原则允许提取8个单一的原则分量表，7 Cronbach的α大于0.7所需的可接受的内部一致性。FCI和FMCE之间的差异表明，这两种仪器可以提供互补的，但不同的，关于学生理解牛顿定律的信息，FCI测量一个完整的牛顿力概念，FMCE测量该力概念的细节。
Many studies have examined the structure and properties of the Force Concept Inventory (FCI); however, far less research has investigated the Force and Motion Conceptual Evaluation (FMCE). This study applied Multidimensional Item Response Theory (MIRT) to a sample ofFMCE post-test responses. Exploratory factor analysis showed that 5, 9, and 10-factor models optimized some fit statistics. The FMCE uses extensive blocking of items into groups with a common stem; these blocks factored together in most models. A confirmatory analysis, which constrained the MIRT models to a theoretical model constructed from expert solutions, produced a model requiring only 8 principles, fundamental reasoning steps. This was substantially fewer than the 19 principles identified in the FCI by a previous study. Correlation analysis also demonstrated that the two instruments were very dissimilar. The reduced number of principles and the repetition of items using a single principle allowed the extraction of eight single-principle subscales, seven with Cronbach’s alpha greater than the 0.7 required for acceptable internal consistency. The differences between the FCI and the FMCE suggest that the two instruments could provide complementary, but different, information about student understanding of Newton’s laws with the FCI measuring an integrated Newtonian force concept and the FMCE measuring details of that force concept.
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多维项目反应理论与电、磁的概念调查
影响因子：
3.1
作者：
Zabriskie, Cabot;Stewart, John
通讯作者：
Stewart, John
影响因子：
3.1
作者：
J. Stewart;Cabot Zabriskie;Seth DeVore;Gay Stewart
通讯作者：
Gay Stewart
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
W. D. Linden
通讯作者：
W. D. Linden
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
S. Ramlo
通讯作者：
S. Ramlo
影响因子：
3.5
作者：
L. McDermott
通讯作者：
L. McDermott