Frontiers in Digital Health (Jul 2024)

Reliability and validity of the online Pittsburgh sleep quality index in college students from low-income regions

  • Augusto César Ferreira De Moraes,
  • Augusto César Ferreira De Moraes,
  • Augusto César Ferreira De Moraes,
  • Lorrane Cristine Conceição da Silva,
  • Lorrane Cristine Conceição da Silva,
  • Barbara Saldanha Lima,
  • Kliver Antonio Marin,
  • Ethan T. Hunt,
  • Marcus Vinicius Nascimento-Ferreira,
  • Marcus Vinicius Nascimento-Ferreira

DOI
https://doi.org/10.3389/fdgth.2024.1394901
Journal volume & issue
Vol. 6

Abstract

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ObjectivesWe aimed to test the reliability and structural validity (also called dimensionality) of the online Pittsburgh Sleep Quality Index among college students from low-income regions.MethodsWe assessed 195 Brazilian college students from a low-income region (Gini index of 0.56), of whom 117 were reassessed to evaluate the reliability. We collected all data in a self-reported online twice, 2-week apart. We evaluated reliability and structural validity.ResultsAll questionnaire components showed reliability, correlation coefficient ≥0.49. In the structural validity, the confirmatory analysis showed better global model adjustment for the one-factor (RMSEA = 0.019; SRMR = 0.041; CFI = 0.992; TLI = 0.986) solution compared with two-factor (RMSEA = 0.099; SRMR = 0.070; CFI = 0.764; TLI = 0.619) and three-factor (RMSEA = 0.108; SRMR = 0.066; CFI = 0.763; TLI = 0.548) solutions, respectively.DiscussionThe online questionnaire presents acceptable reliability and structural validity in Brazilian low-income regions.

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