https://scholars.lib.ntu.edu.tw/handle/123456789/483790
標題: | Rasch analysis of the 9-item shared decision making questionnaire in women with breast cancer | 作者: | Wu T.-Y. Chen C.-T. YI-JING HUANG Hou W.-H. Wang J.-D. CHING-LIN HSIEH |
關鍵字: | Breast cancer; Rasch analysis; Shared decision making; Validity | 公開日期: | 2019 | 出版社: | Lippincott Williams and Wilkins | 卷: | 42 | 期: | 3 | 起(迄)頁: | E34-E42 | 來源出版物: | Cancer Nursing | 摘要: | Background Shared decision making (SDM) is a best practice to help patients make optimal decisions by a process of healthcare, especially for women diagnosed with breast cancer and having heavy burden in long-term treatments. To promote successful SDM, it is crucial to assess the level of perceived involvement in SDM in women with breast cancer. Objective The aims of this study were to apply Rasch analysis to examine the construct validity and person reliability of the 9-item Shared Decision Making Questionnaire (SDM-Q-9) in women with breast cancer. Methods The construct validity of SDM-Q-9 was confirmed when the items fit the Rasch model's assumptions of unidimensionality: (1) infit and outfit mean square ranged from 0.6 to 1.4; (2) the unexplained variance of the first dimension of the principal component analysis was less than 20%. Person reliability was calculated. Results A total of 212 participants were recruited in this study. Item 1 did not fit the model's assumptions and was deleted. The unidimensionality of the remaining 8 items (SDM-Q-8) was supported with good item fit (infit and outfit mean square ranging from 0.6 to 1.3) and very low unexplained variance of the first dimension (5.3%) of the principal component analysis. The person reliability of the SDM-Q-8 was 0.90. Conclusions The SDM-Q-8 was unidimensional and had good person reliability in women with breast cancer. Implications for Practice The SDM-Q-8 has shown its potential for assessing the level of perceived involvement in SDM in women with breast cancer for both research and clinical purposes. ? 2019 Wolters Kluwer Health, Inc. All rights reserved. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064980001&doi=10.1097%2fNCC.0000000000000607&partnerID=40&md5=2a67b58161f8478b729aeb2c603c850d https://scholars.lib.ntu.edu.tw/handle/123456789/483790 |
ISSN: | 0162-220X | DOI: | 10.1097/NCC.0000000000000607 | SDG/關鍵字: | antineoplastic agent; antineoplastic hormone agonists and antagonists; 9 item Shared Decision Making Questionnaire; adult; aged; Article; breast cancer; breast radiotherapy; breast reconstruction; cancer chemotherapy; cancer hormone therapy; cancer radiotherapy; cancer surgery; comparative study; construct validity; controlled study; female; health education; health literacy; human; major clinical study; molecularly targeted therapy; partial mastectomy; priority journal; Rasch analysis; reliability; shared decision making; breast tumor; middle aged; questionnaire; reproducibility; very elderly; Adult; Aged; Aged, 80 and over; Breast Neoplasms; Decision Making, Shared; Female; Humans; Middle Aged; Reproducibility of Results; Surveys and Questionnaires |
顯示於: | 職能治療學系 |
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