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Measurement invariance of the WHOQOL-AGE questionnaire across three European countries.

David SantosFrancisco J AbadMarta MiretSomnath ChatterjiBeatriz OlayaKatarzyna ZawiszaSeppo KoskinenMatilde LeonardiJosep Maria HaroJosé Luis Ayuso-MateosFrancisco Félix Caballero
Published in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2017)
Respondents from Finland, Poland, and Spain attribute the same meaning to the latent construct studied, and differences across countries can be due to actual differences in quality of life. According to the results, the comparability across the different considered samples is supported and the WHOQOL-AGE showed an adequate validity in terms of cross-country validation. Caution should be exercised with the two items which did not meet scalar invariance, as potential indicator of differential item functioning.
Keyphrases
  • psychometric properties
  • cross sectional
  • climate change
  • palliative care
  • solid state