Evidence of validity of internal structure of the Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being Scale (FACIT-Sp-12) in Brazilian adolescents with chronic health conditions

Willyane de Andrade Alvarenga*, Lucila Castanheira Nascimento, Flávio Rebustini, Claudia Benedita dos Santos, Holger Muehlan, Silke Schmidt, Monika Bullinger, Fernanda Mayrink Gonçalves Liberato, Margarida Vieira

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

This study explored the evidence of validity of internal structure of the 12-item Functional Assessment of Chronic Illness Therapy—Spiritual Wellbeing Scale (FACIT-Sp-12) in Brazilian adolescents with chronic health conditions. The study involved 301 Brazilian adolescents with cancer, type 1 diabetes mellitus, or cystic fibrosis. Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), and Item Response Theory (IRT) were used to test the internal structure. Reliability was determined with Cronbach’s Alpha and McDonald’s Omega. The EFA suggested a one-dimensional scale structure in contrast to the original 2-factor model or the 3-factor model which were not reproduced in the current CFA. All quality indicators for the EFA one-factor exceeded the required criteria (FDI = 0.97, EAP = 0.97, SR = 3.96 and EPTD = 0.96, latent GH = 0.90. and the observed GH = 0.85). The FACIT-Sp-12 for adolescents yielded strong evidence for a 1-factor model and with good reliability.

Original languageEnglish
Article number991771
Number of pages10
JournalFrontiers in Psychology
Volume13
DOIs
Publication statusPublished - 26 Sep 2022

Keywords

  • Adolescents
  • Brazil
  • Chronic disease
  • FACIT
  • Psychometric testing
  • Spirituality
  • Validation

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