Cuadrado, EstherMaldonado, Miguel ATabernero, CarmenArenas, AliciaCastillo-Mayén, RosarioLuque, Bárbara2025-01-072025-01-072021-08-30https://hdl.handle.net/10668/28190Objectives: The chronic restrictions to mitigate the new SARS-CoV-2 virus may result in pandemic fatigue. This study set out to develop a short, reliable, valid, and gender-invariant instrument-the Pandemic Fatigue Scale (PFS). Methods: In the first phase, 300 students responded to a pilot questionnaire that allowed the reduction and refinement of the items. In the second phase, the validity, reliability, and invariance of the scale were explored among a sample of 596 participants. Results: Factor exploratory and confirmatory analyses confirmed a robust adjustment for the bifactorial structure that explained 79,36% of the variance. The two factors identified were 1) people's demotivation in continuing to follow the recommended protective behaviors (neglect) and 2) people's boredom regarding the pandemic-related information (boredom). The pattern of relations between the Pandemic Fatigue Scale and other variables-find through correlation, mediation, and path analyses-and the gender differences-find in the ANOVA analyses-provided strong evidence of the construct validity. Moreover, the PFS was shown to be invariant regarding gender in a multigroup factor confirmatory analysis. Conclusion: The instrument can be of utility for professionals and researchers to assess pandemic fatigue, a variable that can affect the adoption of protective measure to avoid catching and spreading the virus.enAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/COVID-19pandemic fatigueprotective behaviorscale developmentscale validationCOVID-19FatigueHumansPandemicsPublic HealthReproducibility of ResultsSurveys and Questionnairesresearch article34566554open access10.3389/ijph.2021.16042601661-8564PMC8461461https://www.ssph-journal.org/articles/10.3389/ijph.2021.1604260/pdfhttps://pmc.ncbi.nlm.nih.gov/articles/PMC8461461/pdf