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Chart of the Decade: Why You Shouldn’t Trust Every Scientific Study You See

https://www.motherjones.com/kevin-drum/2018/11/chart-of-the-decade-why-you-shouldnt-trust-every-scientific-study-you-see/
 
Before 2000, researchers cheated outrageously. They tortured their data relentlessly until they found something—anything—that could be spun as a positive result, even if it had nothing to do with what they were looking for in the first place. After that behavior was banned, they stopped finding positive results. Once they had to explain beforehand what primary outcome they were looking for, practically every study came up null. The drugs turned out to be useless.


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