A Rasch analysis of emerging adults’ health motivation questionnaire in higher education context

Min An and Xiaofei Yu

PLOS ONE, 2021, vol. 16, issue 3, 1-13

Abstract: Objective: 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. Methods: 322 participants were recruited based on a convenience sampling method. The Rasch analysis was carried out using the RUMM2030 software. Results: 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. Conclusions: 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.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0248389

DOI: 10.1371/journal.pone.0248389

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