Background/Objectives: Fear of recurrence is one of the main issues affecting cancer patients after the completion of treatment. Despite the development of various assessment tools at the international level, there is a lack of validated questionnaires in Spanish. For this reason, the aim of this study is to conduct a transcultural adaptation and evaluate the psychometric properties of the Spanish version of the Fear of Cancer Recurrence (FCR7) questionnaire. Methods: We carried out translation and transcultural adaptation of the FCR7 scale, content validity through expert review, and face validity with a pilot test in the first phase. In the second phase, construct validity was evaluated through confirmatory factor analysis and Rasch analysis, along with reliability (internal consistency), convergent–divergent validation, and known-groups validation in a sample of 315 individuals with a history of cancer. Descriptive and inferential analysis was performed using JAMOVI© v.2.3.24., confirmatory factor analysis with FACTOR© v.12.02.01x64 bits, and Rasch analysis with JMetrik© v.2.0. Results: Aiken’s coefficient exceeded 0.75 for all items, indicating acceptable face validity for the instrument. Two unidimensional models were obtained for the instrument, FCR7-SP and FCR6-SP, both showing acceptable fit values and adequate reliability (omega coefficient = 0.933 [95% CI: 0.922–0.944] and 0.942 [95% CI: 0.931–0.951], respectively). Conclusions: The Spanish version of the FCR7 is valid and reliable for assessing fear of cancer recurrence in the Spanish population, with two models available for its application (FCR7-SP and FCR6-SP). The availability of this tool will enable the evaluation of this phenomenon in clinical practice and a more effective approach to addressing its consequences.
**背景/目的：** 复发恐惧是影响癌症患者完成治疗后所面临的主要问题之一。尽管国际上已开发出多种评估工具，但西班牙语版本缺乏经过验证的问卷。因此，本研究旨在对西班牙语版癌症复发恐惧量表进行跨文化调适，并评估其心理测量学特性。 **方法：** 在第一阶段，我们对FCR7量表进行了翻译和跨文化调适，通过专家评审评估内容效度，并通过预试验评估表面效度。在第二阶段，我们在315名有癌症病史的个体样本中，通过验证性因子分析和Rasch分析评估了结构效度，同时评估了信度（内部一致性）、聚合-区分效度以及已知群体效度。使用JAMOVI© v.2.3.24.进行描述性和推断性分析，使用FACTOR© v.12.02.01x64位版本进行验证性因子分析，使用JMetrik© v.2.0进行Rasch分析。 **结果：** 所有条目的艾肯系数均超过0.75，表明该工具具有可接受的表面效度。获得了该工具的两个单维模型：FCR7-SP和FCR6-SP，两者均显示出可接受的拟合值和足够的信度（ω系数分别为0.933 [95% CI: 0.922–0.944] 和 0.942 [95% CI: 0.931–0.951]）。 **结论：** 西班牙语版FCR7量表对于评估西班牙人群的癌症复发恐惧是有效且可靠的，其应用有两个模型可供选择（FCR7-SP和FCR6-SP）。该工具的可用性将有助于在临床实践中评估这一现象，并更有效地应对其带来的后果。
肿瘤(癌症)患者之家