Development of Short Versions for the WHOQOL-OLD Module

Autor/inn/en	Fang, Jiqian; Power, Mick; Lin, Yueqing; Zhang, Jinxin; Hao, Yuantao; Chatterji, Somnath
Titel	Development of Short Versions for the WHOQOL-OLD Module
Quelle	In: Gerontologist, 52 (2012) 1, S.66-78 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0016-9013
DOI	10.1093/geront/gnr085
Schlagwörter	Quality of Life; Test Reliability; Correlation; Psychometrics; Item Response Theory; Field Studies; Test Construction; Test Validity; International Organizations; Gerontology; Older Adults; Measures (Individuals); Test Theory; Regression (Statistics) + Suchen Sie Ihr Suchwort? Lebensqualität; Testreliabilität; Korrelation; Psychometry; Psychometrie; Item-Response-Theorie; Praxisforschung; Testaufbau; Testvalidität; International organisation; International organisations; International organization; Internationale Organisation; Gerontologie; Älterer Erwachsener; Messdaten; Testtheorie; Regression; Regressionsanalyse
Abstract	Purpose of the study: To explore short-form versions of World Health Organization Quality of Life (WHOQOL-OLD) with acceptable psychometric properties, which was developed for older adults by the WHOQOL research group, containing 24 items initially. Design and Methods: We randomly sampled two-thirds of respondents from the data of WHOQOL-OLD field study (N = 5,566), as a developmental sample, and the remaining third as a validation sample. Three approaches (item response theory [IRT] and regression analysis [REG], classical test theory [CTT] and REG, and CTT and IRT and REG) were performed to develop three short-form scales with six items each using the developmental sample. The reliability and criterion validity of the three short-form scales were evaluated using the validation sample. Results: The version 1 of short-form scales contained items 6, 11, 12, 16, 20, and 21; version 2 contained items 2, 6, 11, 12, 17, and 22; and version 3 contained items 4, 6, 17, 19, 20, and 24. The correlation coefficient between the total scores of the three versions and WHOQOL-OLD were 0.918, 0.925, and 0.922, respectively. The internal consistency reliability coefficients of the three versions were 0.681, 0.678, and 0.649, respectively. Implications: The three versions of short-form WHOQOL-OLD contained the best items of the original module, much shorter, and with good internal consistency and criterion validity as a whole. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10