Impact of COVID‑19 on quality of life in Peruvian older adults: construct validity, reliability and invariance of the COV19—Impact on Quality of Life (COV19‑QoL) measurement
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Date
2023Author(s)
Caycho‑Rodríguez, Tomás
Carbajal‑León, Carlos
Vilca, Lindsey W.
Reyes‑Bossio, Mario
Gallegos, Miguel
Carranza Esteban, Renzo
Noe‑Grijalva, Martin
Arias Gallegos, Walter L.
Delgado‑Campusano, Mariel
Muñoz‑del‑Carpio‑Toia, Águeda
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“The aim of the present study was to translate into Spanish and evaluate the psychometric evidence of the Impact on
Quality of Life (COV19-QoL) applied to a sample of Peruvian older adults (N=298; 58.1% women, 41.9% men, mean
age 65.34 years [SD=11.33]). The study used techniques from the Classical Test Theory (CTT) and Item Response
Theory (IRT). The fndings confrmed the single factor structure of the COV19-QoL, high internal consistency reliability,
measurement invariance by gender, and all items demonstrated adequate discrimination and difculty indices. In this
sense, the items allow adequate discrimination between low, medium and high levels of the impact of the COVID-19
pandemic on quality of life. In addition, a greater perceived impact of the pandemic on quality of life is necessary to
answer the higher response options of the COV19-QoL. In conclusion, the COV19-QoL is a valid measurement scale of
the impact of the COVID-19 pandemic on the quality of life of Peruvian older adults.“
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