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[Factor analysis of abbreviated versions of the WHOQoL-Old in Chilean older people]
Alfonso Urzúa M1, Mauricio Navarrete
1Línea de Investigación Salud y Calidad de Vida, Escuela de Psicología, Universidad Católica del Norte, Antofagasta, Chile. alurzua@ucn.cl
Background:
The increase in elderly population demands the need for new health measures that are reliable and valid.
Aim:
To compare the factor structure of the Quality of Life Scale WHOQoL-Old of the World Health Organization with the three proposed abbreviated versions of the scale.
Material And Methods:
We performed confirmatory factor analysis on data collected from 804 older people, aged 70 ± 6 years (66% females).
Results:
One of the unifactorial models that incorporate six questions had goodness of fit values greater than 0.95 in the non-normed fit index and below .05 in the root-mean square error of approximation.
Conclusions:
The abbreviated version tested is a valid and reliable questionnaire to be used in Chilean older people.
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