Rodrigo Moreta-Herrera, Tomás Caycho-Rodríguez, Alexandra Salinas, Micaela Jiménez-Borja, Daniel Gavilanes-Gómez, Carlos José Jiménez-Mosquera
{"title":"Factorial Validity, Reliability, Measurement Invariance and the Graded Response Model for the COVID-19 Anxiety Scale in a Sample of Ecuadorians.","authors":"Rodrigo Moreta-Herrera, Tomás Caycho-Rodríguez, Alexandra Salinas, Micaela Jiménez-Borja, Daniel Gavilanes-Gómez, Carlos José Jiménez-Mosquera","doi":"10.1177/00302228221116515","DOIUrl":null,"url":null,"abstract":"<p><p>The aims of the research are to evaluate the factorial validity, internal consistency, measurement invariance, discrimination, and difficulty of the Covid-19 Anxiety Scale (CAS) applied to a sample of Ecuadorian adults (<i>N</i> = 451). The study is based on an instrumental design with Classical Test Theory (CTT) and Item Response Theory (IRT) technics. The results confirmed the validity of the CAS single-factor structure, with measurement invariance across gender and high internal consistency. Additionally, all CAS items displayed adequate discrimination indexes and proper ordering of the difficulty thresholds. In a conclusion, the CAS is a valid measurement scale for Ecuadorian adults.</p>","PeriodicalId":74338,"journal":{"name":"Omega","volume":" ","pages":"1078-1093"},"PeriodicalIF":0.0000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9297068/pdf/10.1177_00302228221116515.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Omega","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/00302228221116515","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/7/19 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The aims of the research are to evaluate the factorial validity, internal consistency, measurement invariance, discrimination, and difficulty of the Covid-19 Anxiety Scale (CAS) applied to a sample of Ecuadorian adults (N = 451). The study is based on an instrumental design with Classical Test Theory (CTT) and Item Response Theory (IRT) technics. The results confirmed the validity of the CAS single-factor structure, with measurement invariance across gender and high internal consistency. Additionally, all CAS items displayed adequate discrimination indexes and proper ordering of the difficulty thresholds. In a conclusion, the CAS is a valid measurement scale for Ecuadorian adults.
本研究的目的是评估 Covid-19 焦虑量表（CAS）的因子效度、内部一致性、测量不变性、区分度和难度，该量表适用于厄瓜多尔成年人样本（N = 451）。研究采用了工具设计，并运用了经典测验理论（CTT）和项目反应理论（IRT）技术。研究结果证实了 CAS 单因素结构的有效性，具有跨性别测量不变性和较高的内部一致性。此外，所有 CAS 项目都显示出足够的区分度指数和适当的难度阈值排序。总之，CAS 对厄瓜多尔成年人来说是一个有效的测量量表。
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
