Everyone produces pyramids of evidence, so I thought I'd make one for issues in published research Fraud is (relatively) rare, but it is not the only issue we should be talking aboutpic.twitter.com/3Of3RDUAAA
Epidemiologist. Writer (Guardian, Observer etc). "Well known research trouble-maker". PhDing at @UoW Host of @senscipod Email gidmk.healthnerd@gmail.com he/him
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Everyone produces pyramids of evidence, so I thought I'd make one for issues in published research Fraud is (relatively) rare, but it is not the only issue we should be talking aboutpic.twitter.com/3Of3RDUAAA
Is pyramid trying to convey relative *frequency or *importance of each problem? Outright fraud probably least common, bad study design most common. But bad study design trumps all levels in importance-if design can't provide an actionable result, nothing else matters.
I agree with this*; severity and frequency are two mostly independent and not perfectly correlated (certainly not monotonically). * except that fraud is more severe than bad design on an individual basis; but bad design is a bigger problem on a literature-level basis
I agree, this graphic is more about issues in individual published studies, as a whole bad study design and/or statistical analysis are the bigger issues by far
Maybe nitpicking, but were you intending the width to be frequency, and the height to be severity? Either way, I always argue that bad design is worse than bad stats or even errors. Bad design is an existential threat, doomed before it happens and it unrecoverable.
Yep. To be honest, I wanted to have bad stats/design in the same level because they're the same thing essentially, but it didn't look very good. I was more thinking here about things that should get a paper retracted
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