Department of Communication, University of Kentucky, United States.
Department of Communication Studies, University of Miami, Coral Gables, FL, 33146, United States.
Patient Educ Couns. 2021 May;104(5):1059-1065. doi: 10.1016/j.pec.2020.10.007. Epub 2020 Oct 13.
Learning about clinical trials is as stressful and challenging for cancer patients as it is for the clinical staff who provide education to patients. Information aids (IAs) can support both discussions and patients' decision-making, especially when IAs offer interactive features that provide information based on individuals' needs and experiences. However, it is not clear which factors contribute to interactive IAs' effectiveness.
An experiment with cancer patients and survivors (n = 313) compared the effects of two IAs about clinical trial participation: one with modality (i.e. website/technological) interactivity only and one with both modality and message interactivity (i.e. provides information contingent on individual users' information needs).
The IA with both modality and message interactivity features elicited the higher perceived visual informativeness (PVI) and cognitive absorption (CA) scores. The model supports the moderating role of PVI and cancer information overload (CIO), and the mediating role of CA.
The IA with both modality and message interactivity better supported individuals' decision-making and improved attitudes and knowledge scores. CIO was experienced more by participants using the modality interactivity-only IA.
Message interactivity may simplify individuals' cognitive processes. IAs about clinical trial participation should include both message and modality interactivity.
学习临床试验对癌症患者和为患者提供教育的临床医护人员来说，压力和挑战都很大。信息辅助工具（IA）可以支持讨论和患者决策，特别是当 IA 提供基于个人需求和经验提供信息的交互功能时。然而，目前尚不清楚哪些因素有助于提高交互性 IA 的效果。
一项针对癌症患者和幸存者（n=313）的实验比较了两种关于临床试验参与的 IA 的效果：一种只有模式（即网站/技术）交互性，另一种既有模式交互性又有消息交互性（即根据个体用户的信息需求提供信息）。
具有模式和消息交互性特征的 IA 产生了更高的感知视觉信息量（PVI）和认知吸收（CA）得分。该模型支持 PVI 和癌症信息过载（CIO）的调节作用，以及 CA 的中介作用。
具有模式和消息交互性的 IA 更好地支持了个体的决策，并提高了态度和知识得分。使用仅具有模式交互性的 IA 的参与者体验到了更多的 CIO。
消息交互性可能简化了个体的认知过程。关于临床试验参与的 IA 应该同时包含消息和模式交互性。
