Psychometric properties of a subjective sleep quality index to be used with the elderly: an exploratory study
Miniatura indisponível
Data
2012
Autores
Marques, Mariana
Espirito-Santo, Helena
Matreno, Joana
Fermino, Simon
Alves, Vítor
Vigário, Vanessa
Nascimento, Tirsa
Moitinho, Sara
Almeida, Rute
Costa, André
Título da revista
ISSN da revista
Título do Volume
Editora
Journal of Sleep Research
Resumo
Objectives: Explore the psychometric properties of a sleep quality index to be used with the elderly population.
Methods: 99 elderly (mean age, M=78.65; SD= 6.92; range=60-95) under social responses in institutions from Coimbra Council were assessed through a sleep questionnaire, composed of a sleep quality index and questions assessing sleep correlates. The sleep index is composed by seven items assessing sleep latency, difficulty in falling asleep, number of night awakenings, waking up spontaneously too early, subjective perception that waking up too early constitutes a problem for the person and two items that evaluate general subjective sleep quality and sleep depth.
Results: KMO = .830; Bartlett’s Test of Sphericity ≤.001. A principal components analysis and the scree plot inspection revealed a one-factor solution, explaining 48.8% of the total variance. Very good internal consistency (Cronbach alpha coefficient; α=.812).
Conclusion: This sleep quality index presents good psychometric properties. Since, in terms of assessment, it is important not to overload the elderly population, this very short instrument constitutes a good option to assess sleep quality.
Descrição
Este trabalho inseriu-se no projeto de investigação: Trajetórias do Envelhecimento: estudo dos fatores preditores da demência e do envelhecimento saudável
Palavras-chave
Envelhecimento - Aging, Sono - Sleep, Psicometria - Psychometrics
Citação
Marques, M., Espirito-Santo, H., Matreno, J., Fermino, S., Alves, V., Vigário, V., et al. (2012). Psychometric properties of a subjective sleep quality index to be used with the elderly: an exploratory study. Journal of Sleep Research, 21(Suppl. 1), S199.