Rasch models suggested the satisfactory psychometric properties of the World Health Organization Quality of Life-Brief among lung cancer patients.
The study examined whether the items of the World Health Organization Quality of Life-Brief questionnaire can assess its four underlying domains (Physical, Psychological, Social, and Environment) in a sample of lung cancer patients. All patients ( n = 1150) were recruited from a medical center in Tainan, and each participant completed the World Health Organization Quality of Life-Brief. Several Rasch rating scale models were used to examine the data-model fit, and Rasch analyses corroborated that each domain of the World Health Organization Quality of Life-Brief could be unidimensional. Although three items were found to have a poor fit, all the other items fit the unidimensionality with ordered thresholds.
National Cheng Kung University, Taiwan.
Chung-Ying
CY
Lin
National Cheng Kung University, Taiwan.
Szu-Chun
SC
Yang
National Cheng Kung University, Taiwan.
Wu-Wei
WW
Lai
National Cheng Kung University, Taiwan.
Wu-Chou
WC
Su
National Cheng Kung University, Taiwan.
Jung-Der
JD
Wang
D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000503:physiopathology / Q000523:psychology; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008175:Lung Neoplasms / Q000503:physiopathology / Q000523:psychology; D008297:Male; D008875:Middle Aged; D015233:Models, Statistical; D011594:Psychometrics; D011788:Quality of Life / Q000523:psychology; D015203:Reproducibility of Results; D014944:World Health Organization
Rasch analysis; differential item functioning; lung cancer; quality of life; unidimensionality