School of Nursing, Health Science Center, Xi'an Jiaotong University, Xi'an, 710061, China.
Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK.
BMC Psychol. 2024 Nov 6;12(1):630. doi: 10.1186/s40359-024-02121-w.
Psychological flexibility (PF) is defined as the ability to pursue valuable life goals despite the existence of distress. The Personalized Psychological Flexibility Index (PPFI) is a new measure of psychological flexibility that can address existing deficiencies. This study aimed to translate and validate the psychometric characteristics of the Chinese version of the PPFI among medical college students.
The study was conducted in two phases. Phase 1 involved the translation and cross-cultural adaptation of the PPFI according to guidelines recommended by the International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Phase 2 was a cross-sectional survey conducted on 945 medical college students in China. The psychometric performances of the scale were assessed using construct validity, divergent validity, criterion validity, incremental validity, internal consistency, and test-rest reliability.
The exploratory factor analysis (EFA, n1 = 440) showed that the Chinese version of the PPFI consisted of 3 factors, with a total of 15 items. The confirmatory factor analysis (CFA, n2 = 440) showed that the three-factor structure fit well (χ/ =2.469, SRMR = 0.051, RMSEA = 0.058, GFI = 0.94, CFI = 0.985). The total Chinese PPFI score had a moderate positive association with the Comprehensive Assessment of Acceptance and Commitment Therapy (CompACT, r = 0.344) and a negative association with the Acceptance and Action Questionnaire-II (AAQ-II, r = -0.334). Furthermore, the Chinese PPFI demonstrated good internal consistency (Cronbach's α = 0.826) and test-retest reliability (ICC = 0.817, p < 0.001).
The 15-item Chinese version of the PPFI is a reliable and valid tool for measuring PF in Chinese medical students. However, additional studies are needed to validate its psychometric properties in more generalizable samples and other contexts.
心理灵活性（PF）被定义为在存在痛苦的情况下追求有价值的生活目标的能力。个性化心理灵活性指数（PPFI）是一种新的心理灵活性测量工具，可以解决现有缺陷。本研究旨在翻译并验证中文版 PPFI 在医学生中的心理测量特性。
该研究分两个阶段进行。第 1 阶段根据国际药物经济学和结果研究学会（ISPOR）推荐的指南对 PPFI 进行翻译和跨文化适应。第 2 阶段在中国对 945 名医学生进行了横断面调查。采用结构效度、发散效度、效标效度、增量效度、内部一致性和测试-重测信度来评估量表的心理测量性能。
探索性因子分析（EFA，n1=440）显示，中文版 PPFI 由 3 个因子组成，共 15 个条目。验证性因子分析（CFA，n2=440）显示，三因子结构拟合良好（χ/=2.469，SRMR=0.051，RMSEA=0.058，GFI=0.94，CFI=0.985）。中文版 PPFI 总分与综合接纳与承诺疗法评估量表（CompACT）呈中度正相关（r=0.344），与接纳与行动问卷-II（AAQ-II）呈负相关（r=-0.334）。此外，中文版 PPFI 具有良好的内部一致性（Cronbach's α=0.826）和重测信度（ICC=0.817，p<0.001）。
中文版 PPFI 是一种可靠有效的测量医学生 PF 的工具。然而，需要进一步的研究来验证其在更具代表性的样本和其他环境中的心理测量特性。
