Psychometric properties and gender invariance of the Chinese version of the self-report pediatric quality of life inventory version 4.0: Short form is acceptable

Chung-Ying Lin, Wei Ming Luh, Ai Lun Yang, Chia Ting Su, Jung Der Wang, Hui Ing Ma

Research output: Journal article publicationJournal articleAcademic researchpeer-review

44 Citations (Scopus)


Purpose To evaluate the psychometric properties and gender invariance of the Chinese version of the Pediatric Quality of Life Inventory (PedsQL) for 8- to 12-year-olds. Methods Psychometric testing and confirmatory factor analysis (CFA) were used with a convenience sample of 8- to 12-year-old children (n = 479) for PedsQL full and short forms. Results The internal consistency reliability was satisfactory for all subscales and total scores (Cronbach's a = 0.73-0.90), except for the school subscale (0.68 [full form], 0.62 [short form]). Test-retest reliability was 0.67-0.84. Convergent validity was supported by the correlation between the Children's Depression Inventory and PedsQL psychosocial subscale (r = -0.69). Construct validity determined using CFA showed a better model fit in the short form (RMSEA = 0.06) than in the full form (RMSEA = 0.08). Measurement invariance across gender determined using nested CFA models showed that all absolute DRMSEA values were<0.01. Conclusions The Chinese version of the PedsQL is a relatively reliable and valid instrument, and the PedsQL short form showed a better construct validity than did the full form. Measurement across gender was invariant; therefore, the comparisons of quality of life between boys and girls were appropriate. 2011.
Original languageEnglish
Pages (from-to)177-182
Number of pages6
JournalQuality of Life Research
Issue number1
Publication statusPublished - 1 Feb 2012
Externally publishedYes


  • Children
  • Confirmatory factor analysis
  • Health-related quality of life
  • Measurement equivalence/invariance
  • Taiwan
  • Validation studies

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

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