Department of Oral Diagnostic Sciences, State University of New York at Buffalo School of Dental Medicine, Buffalo, New York, USA.
J Dent Educ. 2020 May;84(5):559-565. doi: 10.1002/jdd.12038. Epub 2020 Jan 27.
The purpose of this study was to determine the psychometric properties of instruments designed to assess the critical thinking domains of disposition and metacognition in a dental student population.
Two instruments originally developed to assess disposition and metacognition domains in undergraduate student populations were administered to dental students from 3 classes in the Spring of 2019. The overall response rate was 73%. Sampling adequacy was established for both domains. Exploratory factor analysis was used to determine underlying dimensions. Criterion validity was established by correlation with traditional measures of academic achievement.
Kaiser-Meyer-Olkin index (>0.80) and Bartlett's test of sphericity (P < 0.005) indicated sampling adequacy for both domains. Factor analysis supported a 2-factor solution for Disposition (Level of Open Mindedness and Tolerance for Cognitive Complexity) and a 2-factor solution for Metacognition (Metacognitive Thinking and Metacognitive Strategies). Items loading at 0.4 or higher were retained. Cronbach's alpha was above 0.8 for all but the Metacognitive Thinking subscale, which nonetheless showed adequate reliability (0.65). Reliability for Disposition and Metacognition scales was also above 0.8.
These results indicate that the instrument has sufficient validity and reliability to support further use in dental education.
本研究旨在确定评估牙科学生群体批判性思维倾向和元认知领域的工具的心理计量学特性。
2019 年春季，向 3 个班级的牙科学生发放了最初用于评估本科生倾向和元认知领域的 2 种工具。总体回复率为 73%。两个领域都确定了抽样充分性。使用探索性因子分析确定潜在维度。与传统学业成绩衡量标准的相关性确立了效标效度。
Kaiser-Meyer-Olkin 指数（>0.80）和 Bartlett 球形检验（P<0.005）表明两个领域的抽样都充分。因子分析支持倾向（开放性思维和对认知复杂性的容忍度）和元认知（元认知思维和元认知策略）的 2 因素解决方案。保留了加载值为 0.4 或更高的项目。除元认知思维分量表外，所有分量表的克朗巴赫系数均高于 0.8，但该分量表仍具有足够的可靠性（0.65）。倾向和元认知量表的可靠性也高于 0.8。
这些结果表明该工具具有足够的有效性和可靠性，可以支持在牙科教育中的进一步使用。
