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

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

doi:10.3389/fdgth.2024.1394901

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

Front Digit Health. 2024 Jul 24:6:1394901. doi: 10.3389/fdgth.2024.1394901. eCollection 2024.

Authors

Augusto César Ferreira De Moraes^#^{1

2

3}, Lorrane Cristine Conceição da Silva^#^{4

5}, Barbara Saldanha Lima^#⁴, Kliver Antonio Marin⁴, Ethan T Hunt⁶, Marcus Vinicius Nascimento-Ferreira^{3

4}

Affiliations

¹ The University of Texas Health Science Center at Houston, School of Public Health in Austin, Department of Epidemiology, Michael & Susan Dell Center for Healthy Living, Texas PARC - the Texas Physical Activity Research Collaborative Lab, Austin, TX, United States.
² Graduate Program in Public Health, Graduate Program in Epidemiology, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil.
³ YCARE (Youth/Child and CArdiovascular Risk and Environmental) Research Group, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil.
⁴ Health, Physical Activity and Behavior Research (HEALTHY-BRA) Group, Universidade Federal do Tocantins, Miracema do Tocantins, Brazil.
⁵ Instituto de Ensino Superior do Sul do Maranhão (IESMA/UNISULMA), Imperatriz, Brazil.
⁶ The University of Texas Health Science Center at Houston, School of Public Health in Austin, Department of Health Promotion and Behavioral Science, Michael & Susan Dell Center for Healthy Living, Texas PARC - the Texas Physical Activity Research Collaborative Lab, Austin, TX, United States.

^# Contributed equally.

Abstract

Objectives: We 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.

Methods: We 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.

Results: All 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.

Discussion: The online questionnaire presents acceptable reliability and structural validity in Brazilian low-income regions.

Keywords: college students; psychometric properties; sleep duration; sleep quality; surveys and questionnaires.

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article.