An Min, Yu Xiaofei
School of Education, Linyi University, Linyi, China.
School of Education, Wenzhou University, Wenzhou, China.
PLoS One. 2021 Mar 15;16(3):e0248389. doi: 10.1371/journal.pone.0248389. eCollection 2021.
The College Students' Health Motivation Questionnaire (CSHM-Q) is used to measure motivation for a healthy lifestyle among emerging adults. This study sought to validate the CSHM-Q using the Rasch measurement model.
322 participants were recruited based on a convenience sampling method. The Rasch analysis was carried out using the RUMM2030 software.
Local item dependency was accommodated using the 'super item' approach. Disordered thresholds were resolved by collapsing some response options. After modification, each component of the CSHM-Q showed acceptable overall fit, item and person fit, internal consistency, and targeting. Unidimensionality was supported at the subscale level. Items did not exhibit disordered threshold, local item dependency, or differential item functioning. Transforming tables were also created to help convert the raw score into an interval scale.
Results of the Rasch analysis supported the interval scale measurement properties of the CSHM-Q and offered health education researchers an instrument to measure emerging adults' health motivation in the higher education context.
大学生健康动机问卷（CSHM-Q）用于测量新兴成年人对健康生活方式的动机。本研究旨在使用拉施测量模型验证CSHM-Q。
采用便利抽样法招募了322名参与者。使用RUMM2030软件进行拉施分析。
使用“超级项目”方法处理局部项目依赖性。通过合并一些回答选项解决了无序阈值问题。修改后，CSHM-Q的每个组成部分都显示出可接受的整体拟合度、项目和人员拟合度、内部一致性和针对性。在子量表水平上支持单维度性。项目未表现出无序阈值、局部项目依赖性或项目功能差异。还创建了转换表以帮助将原始分数转换为区间量表。
拉施分析结果支持CSHM-Q的区间量表测量属性，并为健康教育研究人员提供了一种在高等教育背景下测量新兴成年人健康动机的工具。
