Development and Validation of a Knowledge Scale for Patients with Breast Cancer (KS-Br).
- Author:
Keon Suk LEE
1
;
Ran LEE
;
Soo Hyun KIM
Author Information
1. Center for Breast Cancer, National Cancer Center, Korea.
- Publication Type:Original Article
- Keywords:
Knowledge;
Scale;
Breast cancer;
Validity;
Reliability
- MeSH:
Breast;
Breast Neoplasms;
Female;
Humans;
Incidence;
Korea;
Psychometrics;
Reproducibility of Results;
Sexuality;
Uncertainty
- From:Journal of Korean Oncology Nursing
2010;10(1):59-67
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was the development and validation of knowledge scale for patients with breast cancer (KS-Br) in Korea. METHODS: The process included the construction of a conceptual framework, generation of preliminary items, and the test of validity and reliability of the scale. Thirty-seven items were developed through an evaluation process by 10 experts and 24 items were finally confirmed through item analysis. Psychometric testing was performed with a convenient sample of 303 women with breast cancer. The data was analyzed using independent t-test, Pearson's correlation, and calculation of KR-20. RESULTS: Participants averaged 70.8% correct on the test. The KS-Br has 24 items consisting of 5 categories: incidence of breast cancer, diagnosis and treatment, symptom management, sexuality, and maintenance of daily life. Validity was supported by the use of content validity, known-group technique, and criterion-related validity. Women who had undergone education intervention scored significantly higher than women who had not (p<.001). KS-Br scores were significantly correlated with those of Mishel's Illness Uncertainty Scale (r=-.214, p<.001). Internal consistency of the KS-Br was appropriate (KR20=.805). CONCLUSION: This study reveals that the KS-Br is reliable and valid scale to measure the knowledge of breast cancer. Therefore, this scale can be effectively utilized to assess the knowledge of patients with breast cancer regarding their disease.
