問題詳情
10. John Snow(1936)對倫敦霍亂流行所作之觀察研究，發現不同自來水公司的用戶霍亂死亡率並不相同。但是，不同自來水公司用戶在年齡、性別、社會經濟地位和生活型態等方面並無差異。唯一的差異為飲水水源不同。因此提出飲水水源是霍亂的原因之假說。此一建立研究假說的方法，符合何種 Mill 法則？
(A) 一致法(method of agreement)
(B) 差異法(method of difference)
(C) 類比法(method of analogy)
(D) 剩餘法(method of residues)
(A) 一致法(method of agreement)
(B) 差異法(method of difference)
(C) 類比法(method of analogy)
(D) 剩餘法(method of residues)
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