Department of Medical Psychology-Academic Medical Center, University of Amsterdam, P.O. Box 22660, 1100 DD, Amsterdam, The Netherlands.
Support Care Cancer. 2012 Aug;20(8):1787-95. doi: 10.1007/s00520-011-1276-8. Epub 2011 Sep 27.
The aim of this study was to develop and validate the Trust in Oncologist Scale (TiOS), which aims to measure cancer patients' trust in their oncologist. Structure, reliability and validity were examined.
Construction of the TiOS was based on a multidimensional theoretical framework. Cancer patients were surveyed within a week after their consultation. Trust, satisfaction, trust in health care, self-reported health and background variables were assessed. Dimensionality, internal consistency, test-retest reliability and construct validity were investigated.
Data of 423 patients were included (response rate = 65%). After item reduction, the TiOS included 18 items. Trust scores were high. Exploratory factor analysis suggested one-dimensionality. Confirmatory factor analysis nevertheless indicated a reasonable fit of our four-dimensional theoretical model, distinguishing competence, fidelity, honesty and caring. Internal consistency and test-retest reliabilities were high. Good construct validity was indicated by moderate correlations of trust (TiOS) with satisfaction, trust in health care, willingness to recommend and number of consultations with the oncologist. Exploratory analyses suggested significant correlations of trust with ethnicity and age.
The TiOS reliably and validly assesses cancer patients' trust in their oncologist. The questionnaire can be employed in both clinical practice and future research of cancer patients' trust.
本研究旨在开发和验证信任肿瘤学家量表（TiOS），旨在衡量癌症患者对肿瘤学家的信任。对其结构、信度和效度进行了检验。
TiOS 的构建基于多维理论框架。在咨询后一周内对癌症患者进行了调查。评估了信任、满意度、对医疗保健的信任、自我报告的健康状况和背景变量。研究了维度、内部一致性、重测信度和结构效度。
共纳入 423 例患者（应答率=65%）。经过项目删减，TiOS 包括 18 个项目。信任得分较高。探索性因子分析表明具有一维性。然而，验证性因子分析表明，我们的四维度理论模型具有合理的拟合度，能够区分能力、忠诚、诚实和关怀。内部一致性和重测信度较高。信任（TiOS）与满意度、对医疗保健的信任、推荐意愿和与肿瘤学家的咨询次数之间存在中度相关性，表明具有良好的结构效度。探索性分析表明，信任与种族和年龄存在显著相关性。
TiOS 可靠且有效地评估了癌症患者对肿瘤学家的信任。该问卷可用于癌症患者信任的临床实践和未来研究。
