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Title: Psychometric evaluation and wording effects on the Chinese version of the parent-proxy Kid-KINDL
Authors: Lee, CT
Lin, CY 
Tsai, MC
Strong, C
Lin, YC
Keywords: Children
Confirmatory factor analysis
Parent proxy
Wording effect
Issue Date: 2016
Publisher: BioMed Central
Source: Health and quality of life outcomes, 2016, v. 14, no. 1, 123 How to cite?
Journal: Health and quality of life outcomes 
Abstract: Background: The pediatric quality of life (QoL) questionnaire, the child-rated Kid-KINDL, has wording effects. However, no studies have examined for its parallel questionnaire, the parent-proxy Kid-KINDL. This study aimed to examine the psychometric properties and wording effects of the parent-proxy Kid-KINDL.
Methods: Parents with 8- to 12-year-old children (n = 247) completed the parent-proxy Kid-KINDL, 83 of them completed it again 7-14 days later, and 241 of their children completed the child-rated Kid-KINDL. Internal consistency was examined using Cronbach's α test-retest reliability and concurrent validity, using Pearson correlation coefficients (r); construct validity and wording effects, using confirmatory factor analyses (CFAs).
Results: The internal consistency of the parent-proxy Kid-KINDL total score was acceptable (α = .86). Test-retest reliability (r = .33-.60) and concurrent validity (r = .27-.42) were acceptable or nearly acceptable for all subscales and the total score. The CFA models simultaneously accounting for QoL traits and wording effects had satisfactory fit indices, and outperformed the model accounting only for QoL traits. However, four subscales had unsatisfactory internal consistency, which might be attributable to wording effects.
Conclusion: When children are unable to complete a QoL questionnaire, the parent-proxy Kid-KINDL can substitute with all due cautions to wording effects and inconsistent reliability among different raters.
EISSN: 1477-7525
DOI: 10.1186/s12955-016-0526-3
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