Last Updated
：2025/12/08
attrition bias
Noun
countable
uncountable
Japanese Meaning
attrition bias（脱落バイアス）とは、研究などの過程で参加者が途中で脱落することにより、最終的に残ったグループと脱落したグループとの間に系統的な違いが生じることで、結果として分析に偏りが生じる選択バイアスの一種です。 / 研究対象から参加者が失われる場合に、完遂した参加者のみを分析することで、失われた参加者が持つ特徴が結果に反映されず、真の効果や関係性が歪められる現象を指します。
（ plural ）
（ plural ）
Quizzes for review
A type of selection bias in statistical analysis, caused by loss of participants (attrition) in the course of a study; the subjects that do not run into completion of the study may differ systematically of those who do.
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attrition bias
The study's conclusions were weakened by attrition bias as many participants dropped out before the final assessment.
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The study's conclusions were weakened by attrition bias as many participants dropped out before the final assessment.
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