Yuan Changrong, Qian Huijuan, Wang Jichuan, Lev Elise L, Yuan Avery, Hinds Pamela S
Author Affiliations: School of Nursing, Second Military Medical University, Shanghai, China (Dr Yuan); Orthopedics Department, Shanghai Jiaotong University Affiliated Sixth People's Hospital, China (Ms Qian); Department of Nursing Research and Quality Outcomes and the Center for Translational Science, Children's National Medical Center, School of Medicine, the George Washington University, Washington, DC (Drs Wang and Hinds); College of Nursing, Rutgers University, Newark, New Jersey (Dr Lev); and Chemistry and Biochemistry Department, Suffolk University, Boston, Massachusetts (Ms Yuan).
Cancer Nurs. 2015 Jan-Feb;38(1):E13-20. doi: 10.1097/NCC.0000000000000151.
The Strategies Used by People to Promote Health (SUPPH) is an instrument used to measure self-reported self-efficacy in patient populations. Self-efficacy has a major impact on quality of life and psychological well-being. Previous findings of dimensionality of the SUPPH vary, and cultural differences exist suggesting the need for further investigation and psychometric testing to establish construct validity of the SUPPH in different cultures.
The purpose of this study was to examine the factorial structure of the Chinese version of the SUPPH (C-SUPPH).
Using reports from 764 oncology patients in China, the factorial structure of the C-SUPPH was assessed via 2 analytical strategies. First-order confirmatory factor analysis (CFA) models were used to examine the dimensionality of the C-SUPPH; a second-order CFA was used to determine the existence of a factorial structure hierarchy of the C-SUPPH.
Compared with the 2- and 4-factor solutions, the 3-factor CFA of the C-SUPPH had a better fit with the data (comparative fit index = 0.94, Tucker-Lewis index = 0.94, root-mean-square error of approximation = 0.05, the close-fit test P = .565, and standardized root-mean-square residual = 0.04). Our findings confirmed the 3-scale structure: Positive Attitude, Stress Reduction, and Making Decisions; together, the 3 factors represent an underlying higher-order factor, that of general self-care self-efficacy.
The C-SUPPH has a valid factorial structure and can be readily applied to studying self-efficacy in Chinese patients who are diagnosed with cancers.
Our findings provide support for a culturally sensitive, reliable, and valid self-efficacy measure (the C-SUPPH) of Chinese adult cancer patients' self-care self-efficacy.
人们促进健康的策略（SUPPH）是一种用于测量患者群体自我报告的自我效能感的工具。自我效能感对生活质量和心理健康有重大影响。先前关于SUPPH维度的研究结果各不相同，且存在文化差异，这表明需要进一步调查和进行心理测量测试，以确定SUPPH在不同文化中的结构效度。
本研究旨在检验中文版SUPPH（C-SUPPH）的因子结构。
利用来自中国764名肿瘤患者的报告，通过两种分析策略评估C-SUPPH的因子结构。采用一阶验证性因子分析（CFA）模型来检验C-SUPPH的维度；采用二阶CFA来确定C-SUPPH因子结构层次的存在性。
与二因子和四因子解决方案相比，C-SUPPH的三因子CFA与数据拟合度更好（比较拟合指数=0.94，塔克-刘易斯指数=0.94，近似均方根误差=0.05，拟合优度检验P=0.565，标准化均方根残差=0.04）。我们的研究结果证实了三量表结构：积极态度、减轻压力和做出决策；这三个因子共同代表一个潜在的高阶因子，即一般自我护理自我效能感。
C-SUPPH具有有效的因子结构，可直接应用于研究中国癌症患者的自我效能感。
我们的研究结果为一种对文化敏感、可靠且有效的中国成年癌症患者自我护理自我效能感的自我效能感测量工具（C-SUPPH）提供了支持。
