Journal of Pediatric Psychology Advance Access published online on June 14, 2007
Journal of Pediatric Psychology, doi:10.1093/jpepsy/jsm040
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Development and Psychometric Evaluation of a Catalan Self- and Interviewer-Administered Version of the Pediatric Quality of Life InventoryTM Version 4.0
Department of Psychology, Rovira i Virgili University Catalonia (Spain)
All correspondence concerning this article should be addressed to Huguet, Anna, Department of Psychology, Rovira i Virgili University Catalonia (Spain). E-mail: anna.huguet{at}urv.cat.
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Objective The purposes of this study were to develop and to assess the psychometric properties of a Catalan self- and interviewer-administered version of the Pediatric Quality of Life Inventory Generic Core Scales (PedsQL) with a sample of schoolchildren, and to examine the equivalence between both versions. Methods 511 schoolchildren aged between 9 and 17 years old participated in the study. In addition to completing a Catalan self-administered version of the PedsQL, each child was interviewed individually. Results Confirmatory factor analysis did not support the original Varni's proposal. Instead, a short 12-item version was derived. The higher-order scales for both versions were internally consistent. Moreover, relationships between ratings of children's quality of life were generally significant; both versions were also found to be related with another measure of quality of life supporting their validity. Conclusions A new administration form for the PedsQL is presented in this study. The psychometric properties of both self- and interviewer-administered short 12-item versions are reassuring albeit with a few areas of improvement. Further studies are needed to investigate whether self- and interviewer-administered versions can really be considered to be comparable.
Key words: interviewer- administered version; pediatric quality of life inventory generic core scales; quality of life; self-administered version..
Received January 24, 2007; revision received April 13, 2007; accepted April 19, 2007