Development and Validation of a Knowledge Scale for Patients with Breast Cancer (KS-Br)

환자교육을 위한 유방암 환자의 지식측정 도구개발

  • Lee, Keon-Suk (Center for Breast Cancer, National Cancer Center) ;
  • Lee, Ran (Department of Nursing, National Cancer Center) ;
  • Kim, Soo-Hyun (Department of Nursing, Inha University)
  • 이건숙 (국립암센터 유방암센터) ;
  • 이란 (국립암센터 간호과) ;
  • 김수현 (인하대학교 간호학과)
  • Received : 2009.09.09
  • Accepted : 2010.01.25
  • Published : 2010.02.27


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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