Zeng Jie Ye1, Zhang Zhang2, Ying Tang3, Jian Liang4, Zhe Sun5, Xiao Ying Zhang6, Mu Zi Liang7, Yuan Liang Yu8. 1. Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China. Electronic address: zengjieye@qq.com. 2. Sun Yat-sen University Cancer Center, Guangzhou, Guangdong Province, 510060, China. 3. Institute of Tumor, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China. 4. Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510006, China. 5. The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong Province, 510405, China. 6. The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen,Guangdong Province, 510275, China. 7. Guangdong Academy of Population Development, Guangzhou, Guangdong Province, 510600, China. 8. South China University of Technology, Guangzhou, Guangdong Province, 510641, China.
Abstract
PURPOSE: Resilience is an important concept in the cancer literature and is a salient indicator of cancer survivorship. Classic theory test (CTT) and item response theory (IRT) were performed to develop and validate the 25-item Resilience Scale Specific to Cancer (RS-SC). This study was designed to develop and validate a short form of RS-SC (RS-SC-10) with a multidimensional IRT (MIRT) analysis. METHODS: MIRT analysis was performed to test two models (three- and five-factor) derived from previous studies and assess the item parameters of RS-SC and RS-SC-10. RESULTS: A total of 451 Chinese patients with different cancer diagnoses were analyzed. The three-factor structure showed better goodness of fit compared with the five-factor structure in RS-SC. RS-SC-10 retained 10 items with high discriminative parameters from RS-SC and consisted of two factors, Generic and Shift-Persist. Item information function indicated that RS-SC-10 had the highest discrimination ability among patients with low to moderate levels of resilience. CONCLUSIONS: MIRT provided useful information on RS-SC and RS-SC-10 by combining the approaches of CTT and IRT. RS-SC-10 showed great potential in clinical settings owing to the low scale of burden on patients. More studies on the Minimum Clinically Important Difference of RS-SC-10 are warranted.
PURPOSE: Resilience is an important concept in the cancer literature and is a salient indicator of cancer survivorship. Classic theory test (CTT) and item response theory (IRT) were performed to develop and validate the 25-item Resilience Scale Specific to Cancer (RS-SC). This study was designed to develop and validate a short form of RS-SC (RS-SC-10) with a multidimensional IRT (MIRT) analysis. METHODS: MIRT analysis was performed to test two models (three- and five-factor) derived from previous studies and assess the item parameters of RS-SC and RS-SC-10. RESULTS: A total of 451 Chinese patients with different cancer diagnoses were analyzed. The three-factor structure showed better goodness of fit compared with the five-factor structure in RS-SC. RS-SC-10 retained 10 items with high discriminative parameters from RS-SC and consisted of two factors, Generic and Shift-Persist. Item information function indicated that RS-SC-10 had the highest discrimination ability among patients with low to moderate levels of resilience. CONCLUSIONS: MIRT provided useful information on RS-SC and RS-SC-10 by combining the approaches of CTT and IRT. RS-SC-10 showed great potential in clinical settings owing to the low scale of burden on patients. More studies on the Minimum Clinically Important Difference of RS-SC-10 are warranted.
Authors: Mu Zi Liang; Ying Tang; M Tish Knobf; Alex Molassiotis; Peng Chen; Guang Yun Hu; Zhe Sun; Yuan Liang Yu; Zeng Jie Ye Journal: J Cancer Surviv Date: 2022-08-06 Impact factor: 4.062
Authors: Marziyeh Doostfatemeh; Seyyed Mohammad Taghi Ayatollahi; Peyman Jafari Journal: Health Qual Life Outcomes Date: 2020-10-21 Impact factor: 3.186