Psychological topics, Vol. 30 No. 3, 2021.
Original scientific paper
https://doi.org/10.31820/pt.30.3.9
Psychometric Properties of the General Health Questionnaire (GHQ-28) in Ecuadorian College Students
Rodrigo Moreta-Herrera
orcid.org/0000-0003-0134-5927
; Pontificia Universidad Católica del Ecuador, Quilto, Ecuador; Universidad Autónoma de Madrid, Madrid, Spain
Sergio Dominguez-Lara
; Universidad Privada San Juan Bautista, Lima, Perú
Diego Vaca-Quintana
; Universidad Tecnológica Indoamérica, Quilto, Ecuador
Joselyn Zambrano-Estrella
; Universidad Técnica de Ambato, Ambato, Ecuador
Daniel Gavilanes-Gómez
; Universidad Técnica de Ambato, Ambato, Ecuador
Erika Ruperti-Lucero
; Universidad Estatal de Milagro, Milagro, Ecuador
Daniela Bonilla
orcid.org/0000-0002-3792-6937
; Universidad Tecnológica Indoamérica, Quilto, Ecuador
Abstract
Objective: To analyse the internal structure of the 28-item version of the General Health Questionnaire (GHQ-28), as well as its reliability and validity in relation to other variables in a sample of Ecuadorian university students. Method: Instrumental design with confirmatory factor analysis using weighted least square mean and variance adjusted (WLSMV) estimator, reliability and convergence and discrimination validity of the GHQ-28. Sample: 495 students (56.6% women), between 18 to 35 years old (M = 24.1 years; SD = 2.1), from three universities (59.6% public) in Ecuador. Results: The bifactor model of the GHQ-28 test has an adequate fit with χ2 = 357.81; p > .05; df = 322; χ2/df = 1.11; CFI = .991; TLI = .989; SRMR = .059; RMSEA = .015 [.000 – .023]; ωH = .93; ECV = .90; PUC = .78. The GHQ-28 is reliable and in terms of convergent validity, it correlates significantly and negatively with mental health, assessed by MHC-SF, and it is discriminant between risk and non-risk cases. Conclusion: The GHQ-28 bifactor model is replicable in Ecuadorian college students.
Keywords
bifactor model; factor analysis; mental health; reliability; validation
Hrčak ID:
267079
URI
Publication date:
13.12.2021.
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