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KMID : 1137220100100010059
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Jounal of Korean Oncology Nursing
2010 Volume.10 No. 1 p.59 ~ p.67
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Development and Validation of a Knowledge Scale for Patients with Breast Cancer (KS-Br)
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Lee Keon-Sook
Lee Ran
Kim Soo-Hyun
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Abstract
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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.
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KEYWORD
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Knowledge, Scale, Breast cancer, Validity, Reliability
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