construct
在测量建模中，用来命名与刻画某类理论关注现象的抽象概念（如「检索准确率」「紧急场景下的有用性」「跨人群公平性」），并通过 measurement 和 metric 进一步操作化。
English Definition
"In measurement modeling, an abstract concept that describes a phenomenon of theoretical interest and is named to be operationalized through measurements and metrics (e.g., 'retrieval accuracy,' 'usefulness in emergency contexts,' 'fairness across demographics')."
用法说明 · 针对中文母语者
在 LLM 评估语境里 construct 与 measurement / metric / criterion 必须严格区分：construct 是「评估什么」，measurement/metric 是「怎么测」，criterion 是「什么算合格」。中文常译「构念」，但写作中保留英文 construct 更专业。
常见错误
- ·把 construct 和 metric 混用——这是本论文专门澄清的混淆点
- ·把 construct 当成「变量」（variable）——construct 更强调理论抽象而非统计单元
真实用例 · 2 条
"Constructs define what goals or aspects of LLM-based systems warrant assessment."
"Following measurement modeling terminology, these are abstractions describing phenomena of theoretical interest—from technical properties (e.g., retrieval accuracy) to experiential qualities (e.g., usefulness in emergency contexts) to systemic outcomes (e.g., fairness across demographics)."