Warning Signs in Experimental Design and Interpretation (2007)

Re:Warning Signs in Experimental Design and Interpretation (... by pierrebai on Monday January 07, 2019 @04:57PM (#18850589)

I slightly dislike that his opening paragraphs are wrong. The statement "The group with treatment X had significantly less disease (p = 1%)" does not mean "treatment X it will prevent disease." It only means that there were less disease with a significant probability of being true. IOW, the study might be 99% sure it reduces the disease by 5%.

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Re:Warning Signs in Experimental Design and Interpretation (... by pooppaint on Monday January 07, 2019 @05:08PM (#18850702)

I’m guessing English is not your first language. No where does the author make the implication you state, in fact it asserts the contrary.

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Re:Warning Signs in Experimental Design and Interpretation (... by the_af on Monday January 07, 2019 @11:07PM (#18853061)

But Norvig is asserting that many people interpret the first statement as "it's almost sure treatment X will prevent disease in my case". It's an example of a case where common sense misleads us.

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