Department of Medical Psychology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Patient Educ Couns. 2013 Apr;91(1):25-8. doi: 10.1016/j.pec.2012.11.004. Epub 2012 Dec 6.
The Trust in Oncologist Scale (TiOS) was recently developed and validated in The Netherlands to assess cancer patients' trust in their oncologist. In this study, we translated and further validated the scale amongst English-speaking Australian cancer patients, to establish cross-cultural validity.
The translated 18-item scale was administered to cancer patients (n = 175) from three Sydney hospitals. In addition to trust, we assessed patients' satisfaction, trust in health care, and background characteristics. Dimensionality, internal consistency, and construct validity of the translated scale were assessed.
Psychometric properties of all items were acceptable. Trust scores were very high. Factor analyses indicated one-dimensionality of the scale. Internal consistency was strong. Moderate to high correlations were found between trust (TiOS) and its known correlates, i.e., satisfaction, number of previous consultations with the oncologist, and trust in health care, indicating good construct validity.
Trust is highly coherent, suggesting that cancer patients do not distinguish between separate dimensions of trust. Future research could clarify if trust is equally strong and one-dimensional among specific groups of cancer patients.
Both the English and the Dutch Trust in Oncologist Scales appear suitable for assessing cancer patients' trust reliably and validly.
信任肿瘤学家量表（TiOS）最近在荷兰开发并验证，用于评估癌症患者对肿瘤学家的信任。本研究旨在将该量表翻译成英文，并在澳大利亚英语癌症患者中进一步验证，以建立跨文化有效性。
该翻译后的 18 项量表由悉尼的 3 家医院的癌症患者（n=175）完成。除了信任之外，我们还评估了患者的满意度、对医疗保健的信任以及背景特征。评估了翻译量表的维度、内部一致性和结构有效性。
所有项目的心理测量特性均可以接受。信任评分非常高。因子分析表明该量表具有一维性。内部一致性较强。信任（TiOS）与其已知相关因素（即满意度、与肿瘤学家的咨询次数以及对医疗保健的信任）之间存在中度到高度相关性，表明具有良好的结构有效性。
信任是高度一致的，这表明癌症患者不会区分信任的不同维度。未来的研究可以阐明在特定癌症患者群体中，信任是否同样强烈且具有一维性。
英语和荷兰语的信任肿瘤学家量表似乎都适合可靠且有效地评估癌症患者的信任。
