Impact of event scale–revised: A new analysis of its factor structure as applied to two Portuguese samples during the COVID-19 pandemic

Autores

  • Paulo Figueiredo Atlântica – Instituto Universitário, Barcarena, Portugal https://orcid.org/0000-0002-8340-9316
  • Inês Simões Atlântica – Instituto Universitário, Barcarena, Portugal
  • Sónia dos Santos Serviço de Nutrição e Dietética do Centro Hospitalar Universitário Lisboa Central, Portugal
  • Olga Sousa Valentim Higher School of Nursing of Lisbon (ESEL), Lisboa, Portugal; CINTESIS@RISE – Nursing School of Porto (ESEP), Porto, Portugal; Nursing Research, Innovation and Development Centre of Lisbon (CIDNUR), Lisboa, Portugal
  • Cristina de Sousa Escola Superior de Saúde Atlântica, Barcarena, Portugal. csousa@uatlantica.pt; RECI – Research Unit in Education and Community Intervention; ISEIT Almada, Instituto Piaget, Almada, Portugal

DOI:

https://doi.org/10.17575/psicologia.1925

Palavras-chave:

COVID-19, IES-R, Factor analysis, Psychometric properties

Resumo

This study used the Portuguese version of the Impact of Event Scale-Revised (IES-R) to assess the risk of psychological disturbances associated with the COVID-19 pandemic in two independent samples of the Portuguese population. The psychometric characteristics of the scale were also assessed.

Data was collected through an online survey and its internal consistency was examined. The internal consistency of the scale was high. Factor analysis found different dimensional structures for the scale in the two samples: a three-factor in the first sample and a four-factor structure in the second sample. The different factor structures confirmed the dependence of the results on the characteristics of the samples and the situation where it is applied. Despite these differences in structure, this study showed that the Portuguese version of the IES-R is a reliable tool to measure psychological distress associated with traumatic events such as the COVID-19 pandemic.

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Publicado

2024-06-30

Como Citar

Figueiredo, P., Simões, I., Santos, S. dos, Valentim, O. S. ., & Sousa, C. de. (2024). Impact of event scale–revised: A new analysis of its factor structure as applied to two Portuguese samples during the COVID-19 pandemic. PSICOLOGIA, 38(1), 35–45. https://doi.org/10.17575/psicologia.1925

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