Tsubakita Takashi, Shimazaki Kazuyo, Ito Hiroshi, Kawazoe Nobuo
Nagoya University of Commerce and Business, 4-4, Sagamine, Komenoki-cho, Nisshin-shi, Aichi-ken, Japan.
Department of Nursing College of Life and Health Sciences, Chubu University, 1200 Matsumoto-cho, Kasugai-shi, Aichi-ken, Japan.
BMC Res Notes. 2017 Oct 30;10(1):528. doi: 10.1186/s13104-017-2839-7.
The Utrecht Work Engagement Scale for Students has been used internationally to assess students' academic engagement, but it has not been analyzed via item response theory. The purpose of this study was to conduct an item response theory analysis of the Japanese version of the Utrecht Work Engagement Scale for Students translated by authors. Using a two-parameter model and Samejima's graded response model, difficulty and discrimination parameters were estimated after confirming the factor structure of the scale.
The 14 items on the scale were analyzed with a sample of 3214 university and college students majoring medical science, nursing, or natural science in Japan. The preliminary parameter estimation was conducted with the two parameter model, and indicated that three items should be removed because there were outlier parameters. Final parameter estimation was conducted using the survived 11 items, and indicated that all difficulty and discrimination parameters were acceptable. The test information curve suggested that the scale better assesses higher engagement than average engagement. The estimated parameters provide a basis for future comparative studies. The results also suggested that a 7-point Likert scale is too broad; thus, the scaling should be modified to fewer graded scaling structure.
乌得勒支学生工作投入量表已在国际上用于评估学生的学业投入，但尚未通过项目反应理论进行分析。本研究的目的是对作者翻译的日语版乌得勒支学生工作投入量表进行项目反应理论分析。在确认量表的因子结构后，使用两参数模型和Samejima的分级反应模型估计难度和区分度参数。
该量表的14个项目以日本3214名医学、护理或自然科学专业的大学生为样本进行了分析。使用两参数模型进行初步参数估计，结果表明有三个项目因参数异常应予以删除。使用剩余的11个项目进行最终参数估计，结果表明所有难度和区分度参数都是可接受的。测试信息曲线表明，该量表对较高投入程度的评估优于平均投入程度。估计的参数为未来的比较研究提供了基础。结果还表明，7点李克特量表过于宽泛；因此，应将量表改为分级较少的结构。
