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Translation and validation of the standard Chinese version of PDQ‐39: A quality‐of‐life measure for patients with Parkinson's disease
Author(s) -
Tsang KinLun,
Chi Iris,
Ho ShuLeong,
Lou Vivian Weiqun,
Lee Tatia M.C.,
Chu LeungWing
Publication year - 2002
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.10249
Subject(s) - cronbach's alpha , inter rater reliability , construct validity , reliability (semiconductor) , quality of life (healthcare) , psychology , test (biology) , psychometrics , internal consistency , clinical psychology , physical therapy , medicine , rating scale , developmental psychology , psychotherapist , power (physics) , physics , paleontology , quantum mechanics , biology
Abstract PDQ‐39 has been widely used in the research and clinical management of Parkinson's disease. It has been translated into and validated in various non‐English languages. We report here on the validity and reliability results for the translated standard Chinese PDQ‐39 questionnaire. Fifty‐four patients were recruited from a movement disorder clinic and two regional patient groups, and data were collected by direct interview. Nineteen patients had the tests repeated 4 weeks later to assess the test–retest and interrater reliability. The standard Chinese version of PDQ‐39 demonstrated acceptable internal consistency (Cronbach's α = 0.54–0.90) and was comparable to versions in other languages. Further analysis showed good construct validity and test–retest reliability. Implications and limitations of the study are discussed. © 2002 Movement Disorder Society