@Article{信息:doi 10.2196 / / jmir。6749，作者=“Diviani, Nicola和Dima, Alexandra Lelia和Schulz, Peter Johannes”，标题=“使用项目反应和经典测试理论方法对意大利版电子健康素养量表的心理测量分析”，期刊=“J Med Internet Res”，年=“2017”，月=“4”，日=“11”，卷=“19”，数=“4”，页=“e114”，关键词=“电子健康素养;eHEALS;项目反应理论;经典测试理论;验证;背景:电子健康素养量表(eHEALS)是评估消费者在使用信息技术促进健康方面的舒适度和技能的工具。虽然在信度和构效度方面存在证据，但在结构效度方面存在较少的一致性。目的:本研究的目的是通过应用考虑项目难度的心理测量技术，在社区样本中验证意大利版电子健康素养量表(I-eHEALS)的结构效度。方法:对居住在瑞士意大利语区(提契诺州)的296人进行了两项基于网络的调查。 After examining the latent variables underlying the observed variables of the Italian scale via principal component analysis (PCA), fit indices for two alternative models were calculated using confirmatory factor analysis (CFA). The scale structure was examined via parametric and nonparametric item response theory (IRT) analyses accounting for differences between items regarding the proportion of answers indicating high ability. Convergent validity was assessed by correlations with theoretically related constructs. Results: CFA showed a suboptimal model fit for both models. IRT analyses confirmed all items measure a single dimension as intended. Reliability and construct validity of the final scale were also confirmed. The contrasting results of factor analysis (FA) and IRT analyses highlight the importance of considering differences in item difficulty when examining health literacy scales. Conclusions: The findings support the reliability and validity of the translated scale and its use for assessing Italian-speaking consumers' eHealth literacy. ", issn="1438-8871", doi="10.2196/jmir.6749", url="//www.mybigtv.com/2017/4/e114/", url="https://doi.org/10.2196/jmir.6749", url="http://www.ncbi.nlm.nih.gov/pubmed/28400356" }