Factor structure and concurrent validity of the Satisfaction with Life Domains Scale for Cancer (SLDS-C).
The Satisfaction with Life Domains Scale for Cancer (SLDS-C) is a brief self-report measure of quality of life that uses a familiar and easily understood graphic response format of smiling and frowning faces. This article explores the factor structure and further examines the validity of the SLDS-C compared with another cancer specific quality-of-life measure, the Functional Assessment of Cancer Therapy Scale-General (FACT-G), in a sample of patients with a variety of cancer diagnoses. A self-administered questionnaire containing the SLDS-C and the FACT-G was completed by 352 adult cancer survivors who were at various points post diagnosis. Three SLDS-C factor subscales were derived from analyses of these data: "Life as a Whole," "Daily Activities," and "Social Relationships." Evidence for the concurrent validity of the SLDS-C is presented, including its correlation with the total score of the FACT-G (r = .76) and its correlation with subscale scores of this widely used cancer quality-of-life measure. The SLDS-C has a high level of internal consistency (alpha = .94), and differences in SLDS-C total scores were found for time since diagnosis, number of diagnoses, spread of disease, type of cancer, and treatment status.
Baker
Frank
F
American Cancer Society, Atlanta, GA, USA. Frank_Baker@nymc.edu
Denniston
Maxine
M
Hann
Danette
D
Gesme
Dean
D
Reding
Douglas J
DJ
Flynn
Thomas
T
Kennedy
John S
JS
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000523:psychology*; D011581:Psychological Tests; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D017741:Survivors / Q000523:psychology; D014481:United States