Case Western Reserve University, Cleveland, OH, United States.
Case Western Reserve University, Cleveland, OH, United States.
Appl Nurs Res. 2018 Apr;40:99-105. doi: 10.1016/j.apnr.2018.01.006. Epub 2018 Jan 31.
The aim of this article is to report the psychometric properties of the eight-item cognitive load scale.
According to cognitive load theory, the formatting and delivery of healthcare education influences the degree to which patients and/or family members can engage their working memory systems for learning. However, despite its relevance, cognitive load has not yet been evaluated among surrogate decision makers exposed to electronic decision support for healthcare decisions. To date, no psychometric analyses of instruments evaluating cognitive load have been reported within healthcare settings.
A convenience sample of 62 surrogate decision makers for critically ill patients were exposed to one of two healthcare decision support interventions were recruited from four intensive care units at a tertiary medical center in Northeast Ohio. Participants were administered a battery of psychosocial instruments and the eight-item cognitive load scale (CLS).
The CLS demonstrated a bidimensional factor structure with acceptable discriminant validity and internal consistency reliability (Cronbach's α = 0.75 and 0.89).
The CLS is a psychometrically sound instrument that may be used in the evaluation of decision support among surrogate decision makers of the critically ill. The authors recommend application of the cognitive load scale in the evaluation and development of healthcare education and interventions.
本文旨在报告八分量表认知负荷量表的心理测量特性。
根据认知负荷理论，医疗保健教育的格式和传递方式会影响患者和/或家属为学习而调动工作记忆系统的程度。然而，尽管认知负荷具有相关性，但它尚未在接受电子医疗决策支持的替代决策制定者中进行评估。迄今为止，在医疗保健环境中尚未报告任何评估认知负荷的工具的心理测量学分析。
从俄亥俄州东北部的一家三级医疗中心的四个重症监护病房中招募了 62 名重病患者的替代决策制定者的便利样本，他们接触到两种医疗保健决策支持干预措施之一。参与者接受了一系列社会心理工具和八分量表认知负荷量表（CLS）的评估。
CLS 表现出二维因子结构，具有可接受的判别效度和内部一致性信度（Cronbach's α分别为 0.75 和 0.89）。
CLS 是一种具有良好心理测量特性的工具，可用于评估危重患者替代决策制定者的决策支持。作者建议在医疗保健教育和干预措施的评估和开发中应用认知负荷量表。
