邦費羅尼校正
外觀
邦費羅尼校正(英語:Bonferroni correction)是統計學中在多重比較時使用的一種校正方法,以意大利數學家卡羅·埃米利奧·邦費羅尼的名字命名。
令為一組假設,為每一假設相對應的p值。同時,為零假設總數,則為實際為真的零假設總數。族錯誤率(familywise error rate,簡稱FWER)指拒絕至少一個實際為真的零假設(即出現至少一次第一類錯誤)的概率。此時,邦費羅尼校正是指拒絕所有的零假設。在應用邦費羅尼校正後,FWER滿足。這一結論可以由布爾不等式證明:
邦費羅尼校正是一種相對保守的FWER控制方法,會增加出現第二類錯誤的概率。
參考文獻
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