V2EX systematic error

Systematic Error

释义 Definition

systematic error系统误差;指由仪器偏差、方法缺陷、环境因素或人为固定倾向导致的、方向与大小具有规律性的误差,常使测量或估计结果持续偏高或偏低(不同于随机误差 random error)。

发音 Pronunciation (IPA)

/sstmtk rr/

例句 Examples

The scale has a systematic error, so it always reads 0.5 kg too high.
这台秤存在系统误差,所以读数总是偏高0.5千克。

If the survey question is leading, it can introduce systematic error that biases the results across the entire sample.
如果问卷问题带有诱导性,就可能引入系统误差,使整个样本的结果产生偏倚。

词源 Etymology

systematic 来自 system(系统)+ -atic(表示“具有……性质的”),意为“系统性的、成体系的”。error 源自拉丁语 error,意为“偏离、误差”。合起来 systematic error 强调“由系统性原因造成的稳定偏差”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements(John R. Taylor):在测量不确定度章节中频繁讨论 systematic error 与随机误差的区分与处理。
  • Data Reduction and Error Analysis for the Physical Sciences(Philip R. Bevington & D. Keith Robinson):以实验数据处理为背景,系统讲解 systematic error 的来源、校正与估计。
  • Statistical Methods for Research Workers(R. A. Fisher):在实验设计与偏倚相关讨论中涉及与 systematic error 紧密相关的概念(如偏倚、系统性偏离)。
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