magnitude estimation
量值估计法：心理物理学中的一种量化评估方法，受试者根据感受到的刺激强度按比例自由赋予数值（无固定量表上限限制），常用于 HCI/UX 研究中以高灵敏度量化主观体验，如不适度、舒适度、感知负荷等。
English Definition
"A psychophysical scaling method in which participants freely assign numerical values proportional to the perceived intensity of a stimulus, used in HCI/UX research to quantify subjective experience (e.g., discomfort, comfort, perceived workload) with high resolution."
用法说明 · 针对中文母语者
与固定锚点的评分量表（如 0–10 分李克特量表）不同，量值估计允许受试者自行选定数值范围以反映感知比例，更适合捕捉细微、连续的感知差异；但分析时需做对数变换等标准化处理。
常见错误
- ·把 magnitude estimation 误译为「幅度估计」或「量级估计」；在心理物理学/UX 评估语境中应译为「量值估计」。
- ·把它与 magnitude production（量值生成法）混淆——前者由受试者给感觉赋值，后者由实验者控制刺激、受试者匹配输出。
真实用例 · 2 条
"A variety of subjective rating methods [e.g., 4–7] and magnitude estimation methods [8] have been frequently used for that purpose."
"In this paper, we first introduce an experimental protocol and a statistical analysis procedure for quantitative assessment of time-course motion sickness development, [using magnitude estimation-style scoring]."