Artigo em revista científica
Latent growth curve modeling of psychological well-being trajectories
Maria Salgueiro (Salgueiro, M.F.); Joana Malta (Malta, J.);
Título Revista
American Journal of Theoretical and Applied Statistics
Ano (publicação definitiva)
2013
Língua
Inglês
País
Estados Unidos da América
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Abstract/Resumo
This Paper Proposes Modeling Trajectories of Psychological Well-being Using Latent Growth Curve models (LGCMs). The psychometric scale of the General Health Questionnaire-12 (GHQ-12) is considered. Data from the British Household Panel Survey (BHPS), from years 2003 to 2006 are used. In 1991 Graetz proposed the GHQ-12 as a multidimensional scale, containing three distinct dimensions: anxiety and depression, social dysfunction and loss of confidence. Using such scale, this paper compares a second-order LGCM for the trajectories of a latent factor (measured by these three dimensions) with a LGCM for the trajectories of an overall sum score. Conditional LGCMs are then fitted; sex, age group and perceived health status are considered as the explanatory variables of the growth trajectories. Results show that the model which considers the three dimensions of subjective well-being has a larger explaining capability than the one utilizing the subjective well-being score.
Agradecimentos/Acknowledgements
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Palavras-chave
British household panel survey, General health questionnaire 12, Latent growth curve model, Longitudinal data analysis