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首页> 外文期刊>International journal of older people nursing >Breast cancer threat appraisal: Design and psychometric analysis of a new scale for older women
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Breast cancer threat appraisal: Design and psychometric analysis of a new scale for older women

机译：乳腺癌威胁评估：针对老年妇女的新量表的设计和心理计量分析

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Background: The prospect of being diagnosed with breast cancer generates emotional responses associated with a high degree of health threat. When considering screening, older women are faced with physical and psychological consequences inherent in considering the threat of disease. Aims and objectives: To describe the development and evaluate initial reliability and validity of the Breast Cancer Threat Appraisal Scale (BCTAS), a self-report instrument measuring psychosocial and situational factors related to breast cancer threat appraisal in older women. Design and methods: Preliminary survey items for the Breast Cancer Threat Appraisal Scale (BCTAS) were designed using content experts and focus groups and subsequently tested by a sample of older women. Two hundred forty-three (n = 243) complete data sets were submitted to principal components analysis (PCA). Internal consistency reliability and construct validity of resulting factors were measured. Results: PCA with orthogonal rotation resulted in four components defined by 34 items with loadings of ≥0.40. Internal consistency reliability was evident in all four components (Component # 1 = 0.87, Component # 2 = 0.81, Component # 3 = 0.70 and Component # 4 = 0.72). Correlations between Breast Cancer Fear and total BCTAS (r = 0.29, P < 0.001) and Component # 3 (r = 0.39, P < 0.001) provided partial construct validity. Conclusions: Psychometric analysis provided initial evidence of reliability for four conceptually meaningful scales and partial construct validity for total score and one factor. Implications for Practice: Using these empirically derived scales may clarify for health providers how older women perceive personal threat of breast cancer and inform collaborative decision-making to foster screening.
机译：背景：被诊断出患有乳腺癌的前景会产生与高度健康威胁相关的情绪反应。在考虑筛查时，老年妇女面临着考虑疾病威胁所固有的身体和心理后果。目的和目的：描述和评估乳腺癌威胁评估量表（BCTAS）的初步信度和效度，该量表是一种自我报告工具，用于测量与老年女性乳腺癌威胁评估有关的社会心理和情境因素。设计和方法：乳腺癌威胁评估量表（BCTAS）的初步调查项目是由内容专家和焦点小组设计的，然后由年龄较大的女性样本进行测试。 243个完整数据集（n = 243）已提交给主成分分析（PCA）。测量了内部一致性信度和结果因素的结构效度。结果：正交旋转的PCA导致由34个项定义的四个分量的载荷≥0.40。内部一致性可靠性在所有四个组件（组件＃1 = 0.87，组件＃2 = 0.81，组件＃3 = 0.70和组件＃4 = 0.72）中均很明显。乳腺癌恐惧与总BCTAS（r = 0.29，P <0.001）和3号成分（r = 0.39，P <0.001）之间的相关性提供了部分构建体有效性。结论：心理计量学分析提供了四个概念上有意义的量表的可靠性的初步证据，以及总分和一个因素对部分结构的有效性。实践的意义：使用这些根据经验得出的量表可以为医疗服务提供者阐明年龄较大的妇女如何认识到乳腺癌的人身威胁并告知协作决策以促进筛查。

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