V2EX within-subjects

Within-Subjects

Definition / 释义

(实验设计)被试内(设计):同一批参与者在多个条件/处理下都要完成任务或被测量,从而用“自己与自己比较”的方式来检验条件差异(也常称 repeated-measures design)。也存在其他相关用法,但此为最常见义项。

Pronunciation (IPA) / 发音(IPA)

/wn sbdekts/

Examples / 例句

In a within-subjects study, each participant tries both treatments.
在被试内研究中,每位参与者都会体验两种处理/条件。

Using a within-subjects design increased statistical power because individual differences were controlled.
采用被试内设计提高了统计效能,因为个体差异被控制住了。

Etymology / 词源

within 意为“在……之内”,subjects 在科研语境中指“受试者/被试”。合起来表达“比较发生在同一批被试之内”,强调同一人跨条件测量的研究结构;该术语在心理学、教育学与行为科学的实验方法写作中广泛使用。

Related Words / 相关词

Notable Works / 文献与著作中的用例

  • Designing Experiments and Analyzing Data: A Model Comparison Perspective(Maxwell, Delaney & Kelley)
  • Experimental and Quasi-Experimental Designs for Generalized Causal Inference(Shadish, Cook & Campbell)
  • Research Methods in Psychology(Gravetter & Forzano)
  • Statistics for the Behavioral Sciences(Gravetter & Wallnau)
  • Discovering Statistics Using IBM SPSS Statistics(Andy Field)
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