Measurement invariance of Personal Well-Being Index (PWI-8) across 26 countries

M. Zemojtel-Piotrowska, J. P. Piotrowski, J. Cieciuch, B. G. Adams, E. N. Osin, R. Ardi, S. Bălţătescu, A. L. Bhomi, A. Clinton, G. T. de Clunie, C. Esteves, V. Gouveia, A. Hosseini, H. S. Ghaheh, N. Khachatryan, S. V. Kamble, A. Kawula, K. Liik, E. Letovancova, S. Malo CerratoC. A. Mora, S. Nartova-Bochaver, M. Nikolic, J. Park, E. Paspalanova, G. Pék, J. Różycka-Tran, H. Truong Thi Khanh, T. Tsubakita, C.-M. Vauclair, A. Włodarczyk, J. Maltby

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Abstract

This report examines the measurement invariance of the Personal Well-being Index with 8 items (PWI-8). University students (N = 5731) from 26 countries completed the measure either through paper and pencil or electronic mode. We examined uni-dimensional structure of PWI and performed a Multi-group CFA to assess the measurement invariance across the 26 countries, using conventional approach and the alignment procedure. The findings provide evidence of configural and partial metric invariance, as well as partial scalar invariance across samples. The findings suggest that PWI-8 can be used to examine correlates of life satisfaction across all included countries, however it is impossible to compare raw scores across countries.
Original languageEnglish
Pages (from-to)1697-1711
Number of pages15
JournalJournal of Happiness Studies
Volume18
Issue number6
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes

Keywords

  • Cross-cultural studies
  • Measurement invariance
  • Personal well-being index

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