Factorial Validity, Reliability, Measurement Invariance and the Graded Response Model for the COVID-19 Anxiety Scale in a Sample of Ecuadorians.
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| Title: | Factorial Validity, Reliability, Measurement Invariance and the Graded Response Model for the COVID-19 Anxiety Scale in a Sample of Ecuadorians. |
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| Authors: | Moreta-Herrera, Rodrigo1,2 rmoreta@pucesa.edu.ec, Caycho-Rodríguez, Tomás3, Salinas, Alexandra4, Jiménez-Borja, Micaela5, Gavilanes-Gómez, Daniel6, Jiménez-Mosquera, Carlos José5 |
| Source: | Omega: Journal of Death & Dying. Feb2025, Vol. 90 Issue 3, p1078-1093. 16p. |
| Subject Terms: | *Research methodology evaluation, *Anxiety, *Theory, *Factor analysis, Research evaluation, Sex distribution, Descriptive statistics, Psychology, Mathematical models, Psychometrics, COVID-19, Discriminant analysis |
| Geographic Terms: | Ecuador |
| 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. [ABSTRACT FROM AUTHOR] |
| Copyright of Omega: Journal of Death & Dying is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Education Research Complete |
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