2003•Zhongguo linchuang xinlixue zazhiRequires access

A Study in Reliability and Validity for Quality of Life Scale of Breast Cancer

Qigui Liu

Abstract

Objective: To study the reliability and validity of the Quality of Life Scale for Breast Cancer Patients. Methods:The internal consistency,the test-retest reliability and the criterion-related validity of the Quality of Life Scale were examined based on the data of 545 breast cancer patients and the control group.Results:The Cronbach α of the total scale was 0.99;the test-retest reliability was 0.83;The scores of the benign breast tumour group were higher than those of the malignant breast tumour group in subscales of Physical Well Being, Psychological Well Being , and Social Well Being.The correlation coefficient between the quality of marriage and the quality of life is 0.45 and 0.33 for the two groups respectively( P 0.01). Conclusion: The Quality of Life Scale for Breast Caner Patients had acceptable reliability and validity.

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Key concepts: Cronbach's alpha, Reliability (semiconductor), Breast cancer, Quality of life (healthcare), Psychology, Scale (ratio), Clinical psychology, Internal consistency