V2EX additive effect

Additive Effect

释义 Definition

“additive effect” 指加成效应/相加效应:当两个(或多个)因素、药物、措施或变量同时作用时,总效果大致等于各自单独效果之和(≈ A 的效果 + B 的效果)。常用于药理学、毒理学、统计学(主效应)、心理学与工程等语境。与之相对的概念常见有 synergistic effect(协同效应,> 相加)与 antagonistic effect(拮抗效应,< 相加)。

发音 Pronunciation

/dtv fekt/

例句 Examples

The two medicines had an additive effect on pain relief.
这两种药物在止痛方面呈现相加效应。

In the model, we assume an additive effect of diet and exercise, meaning their combined impact is roughly the sum of each one alone.
在该模型中,我们假设饮食与运动的影响是相加效应,也就是说它们的综合作用大致等于各自单独作用的总和。

词源 Etymology

additive 来自拉丁语 addere(“加上、添加”,*ad-*“向/附加” + dare“给”),表示“可相加的、起加成作用的”;effect 来自拉丁语 effectus(“结果、影响”)。合在一起,“additive effect” 就是“通过相加得到的果/影响”。

相关词 Related Words

文学与典籍用例 Literary Works

  • Goodman & Gilman’s The Pharmacological Basis of Therapeutics(药理学经典教材,常用 “additive effect” 讨论药物联用的相加作用)
  • Casarett & Doull’s Toxicology: The Basic Science of Poisons(毒理学经典教材,用于描述混合暴露的相加效应)
  • Design and Analysis of Experiments(Douglas C. Montgomery,实验设计经典教材,常在“主效应/交互作用”框架下讨论加性效应假设)
  • The Elements of Statistical Learning(Hastie, Tibshirani, Friedman,统计学习经典著作,讨论加性模型与“additive effects”的思想)
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