Abstract
Objective
Classic theory test has been used to develop and validate the 25-item Resilience Scale Specific to Cancer (RS-SC) in Chinese patients with cancer. This study was designed to provide additional information about the discriminative value of the individual items tested with an item response theory analysis.
Methods
A two-parameter graded response model was performed to examine whether any of the items of the RS-SC exhibited problems with the ordering and steps of thresholds, as well as the ability of items to discriminate patients with different resilience levels using item characteristic curves.
Results
A sample of 214 Chinese patients with cancer diagnosis was analyzed. The established three-dimension structure of the RS-SC was confirmed. Several items showed problematic thresholds or discrimination ability and require further revision.
Conclusions
Some problematic items should be refined and a short-form of RS-SC maybe feasible in clinical settings in order to reduce burden on patients. However, the generalizability of these findings warrants further investigations.
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Acknowledgements
The authors acknowledge the valuable information provided by the patients who participated in this study.
Funding
This research was funded by grants from State Administration of Traditional Chinese Medicine (Nos: ZYZC20160901 and ZYZC20160902), and Innovative Project of Guangzhou University of Chinese Medicine (No: 2016KYTD08).
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ZJY, MZL, HZQ—conceptualized and designed the study, carried out the initial analyses, supervised data collection, drafted the initial manuscript, and approved the final manuscript as submitted. HWZ, PFL, XRO, MLL, YLY—coordinated data collection, critically reviewed the manuscript, drafted the initial manuscript, and approved the final manuscript as submitted.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
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Ye, Z.J., Liang, M.Z., Zhang, H.W. et al. Psychometric properties of the Chinese version of resilience scale specific to cancer: an item response theory analysis. Qual Life Res 27, 1635–1645 (2018). https://doi.org/10.1007/s11136-018-1835-2
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DOI: https://doi.org/10.1007/s11136-018-1835-2