Rodríguez-Blázquez Carmen, Ribeiro Oscar, Ayala Alba, Teixeira Laetitia, Araújo Lia, Forjaz Maria João
National Centre of Epidemiology, Carlos III Health Institute, 28029 Madrid, Spain.
Center for Health Technology and Services Research (CINTESIS), Department of Education and Psychology of the University of Aveiro, 3810-193 Aveiro, Portugal.
Int J Environ Res Public Health. 2020 Sep 11;17(18):6610. doi: 10.3390/ijerph17186610.
The purpose of this study is to assess the psychometric properties of the Portuguese version of the Control, Autonomy, Self-realization, and Pleasure (CASP)-12 scale used in the Survey of Health, Aging and Retirement in Europe (SHARE) project. Data were obtained from a representative sample of 1666 people aged ≥50 years living in Portugal and participating in the SHARE wave 6. In addition to the CASP-12 scale, sociodemographic data and health status, activity limitation (GALI), depression (Euro-D) and satisfaction with life scores were collected. Data quality and acceptability, construct and structural validity and internal consistency of the CASP-12 scale were analyzed. A Rasch analysis was also performed. CASP-12 total score (mean: 33.3; standard deviation: 5.8, range: 12-48) correlated with Euro-D (-0.57) and with life satisfaction (0.52). Mean scores were significantly lower for women, people aged ≥75 years and those with activity limitations and worse health status ( < 0.001). The confirmatory factor analysis showed good fit to the 4-factor model (root mean squared error of approximation (RMSEA): 0.07; comparative fit index (CFI): 0.90, χ (48) = 444.59, < 0.001), which was confirmed by Rasch analysis (χ (36) = 10.089, = 0.745, person separation index (PSI) = 0.722 for the 4-factor model). For domains, person separation index ranged 0.31-0.79 and Cronbach's alpha, 0.37-0.73. In conclusion, the Portuguese version of the CASP-12 scale presents some inadequacies in acceptability, internal consistency and structural validity.
本研究旨在评估欧洲健康、老龄化与退休调查（SHARE）项目中使用的葡萄牙语版控制、自主、自我实现和愉悦（CASP）-12量表的心理测量特性。数据来自居住在葡萄牙且参与SHARE第6轮调查的1666名年龄≥50岁的代表性样本。除了CASP-12量表外，还收集了社会人口学数据、健康状况、活动受限情况（GALI）、抑郁情况（欧洲抑郁量表）和生活满意度得分。分析了CASP-12量表的数据质量和可接受性、结构效度和内部一致性。还进行了拉施分析。CASP-12总分（均值：33.3；标准差：5.8，范围：12 - 48）与欧洲抑郁量表得分呈负相关（-0.57），与生活满意度呈正相关（0.52）。女性、年龄≥75岁的人群、活动受限人群以及健康状况较差的人群的平均得分显著较低（<0.001）。验证性因素分析显示该量表与四因素模型拟合良好（近似均方根误差（RMSEA）：0.07；比较拟合指数（CFI）：0.90，χ（48）=444.59，<0.001），拉施分析也证实了这一点（χ（36）=10.089，=0.745，四因素模型的人分离指数（PSI）=0.722）。对于各个领域，人分离指数范围为0.31 - 0.79，克朗巴哈系数为0.37 - 0.73。总之，葡萄牙语版的CASP-12量表在可接受性、内部一致性和结构效度方面存在一些不足之处。
