Adaptation and validation of the Instrumental Expressive Social Support Scale in Portuguese older individuals

Authors

  • Lígia Maria Monteiro Lima Centro de Investigação em Tecnologias e Serviços de Saúde, Escola Superior de Enfermagem do Porto https://orcid.org/0000-0003-4556-0485
  • Célia Santos Centro de Investigação em Tecnologias e Serviços de Saúde, Escola Superior de Enfermagem do Porto
  • Celeste Bastos Centro de Investigação em Tecnologias e Serviços de Saúde, Escola Superior de Enfermagem do Porto
  • Marina Guerra Universidade do Porto, Faculdade de Psicologia e Ciências da Educação
  • Maria Manuela Martins Centro de Investigação em Tecnologias e Serviços de Saúde, Escola Superior de Enfermagem do Porto
  • Patrício Costa Universidade do Minho, Escola de Medicina, Instituto das Ciências da Vida e da Saúde

DOI:

https://doi.org/10.1590/1518-8345.2647.3096

Keywords:

Validation Studies, Factor Analysis, Statistical, Social Support, Geriatric Nursing, Affect, Medication Adherence

Abstract

Objective: to adapt and validate the Instrumental Expressive Social Support Scale (IESS) in a sample of older people. Method: methodological study. The sample of 964 community-dwelling older people was randomly divided into two groups. The first group was used as a calibration sample to study the number of factors underlying social support through Principal Axis Factoring, and the second group as a validation sample to test the “best fit” model through Confirmatory Factor Analysis. Results: exploratory Factor Analysis suggested a three-factor solution, which was confirmed by Confirmatory Factor Analysis. The factors were similar to those in the preexisting dimensions of the original instrument and were named as Sense of control (α = 0.900), Financial support (α = 0.802), Familiar and socio-affective support (α = 0.778). Confirmatory Factor Analysis showed acceptable fit. The model’s goodness-of-fit indexes were satisfactory (χ2/df = 5.418; CFI = 0.903; NFI = 0.884; RMSEA = 0.098). The convergent validity was supported by associations between social support and medication adherence and positive affect. The discriminant validity was evidenced by association with negative affect. The reliability analysis showed high values of internal consistency. Conclusion: the instrument proved to be a valid measure for the assessment of social support in older people.

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Published

2019-03-29

Issue

Vol. 26 (2018)

Section

Original Articles

License

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Including names of authors whose contribution does not fit into the above criteria cannot be justified. Those names can be included in the Acknowledgements section.
 Authors are fully responsible for the concepts disseminated in their manuscripts, which do not necessarily reflect the editors’ and editorial board’s opinion.

 

How to Cite

Adaptation and validation of the Instrumental Expressive Social Support Scale in Portuguese older individuals. (2019). Revista Latino-Americana De Enfermagem, 26, e3096. https://doi.org/10.1590/1518-8345.2647.3096