V2EX carryover-effect

Carryover Effect

定义 Definition

carryover effect(延续效应/残留效应):指某种处理、经验或影响在结束后仍持续存在,并对后续结果产生作用。常见于临床交叉试验(前一期治疗影响到后一期)、心理学/经济学(先前经历影响后续判断)以及习惯与行为(旧习惯延续到新情境)。

发音 Pronunciation (IPA)

/kriovr fekt/

例句 Examples

The carryover effect can last for days.
延续效应可能会持续好几天。

In a crossover trial, researchers include a washout period to reduce the carryover effect from the first treatment to the second, improving the reliability of the results.
在交叉试验中,研究人员会设置清洗期,以减少第一阶段治疗对第二阶段的残留影响,从而提高结果的可靠性。

词源 Etymology

carryovercarry(携带)+ over(延续到之后)构成,原意是“把某物带到下一阶段/下一时期”;加上 effect(影响/效应)后,就形成“前一阶段的影响被带到后一阶段”的含义。该表达在统计学、实验设计与临床研究语境中尤为常见。

相关词 Related Words

文学与著作中的用例 Literary & Notable Works

  • Design and Analysis of Cross-Over Trials(Jones & Kenward) 讨论交叉试验中的 carryover effect 与建模处理方式。
  • Clinical Trials: A Practical Approach(Pocock) 涉及试验设计中如何避免或控制残留/延续影响。
  • Fundamentals of Clinical Trials(Friedman et al.) 在试验方法学章节中提到 carryover effects 及其对结论的干扰。
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