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He addressed ways other than pre-registration you can deal with selection bias: 7. Address publication bias by searching for unpublished trials, displaying fun

He addressed ways other than pre-registration you can deal with selection bias: 7. Address publication bias by searching for unpublished trials, displaying funnel plots, and using statistics like “fail-safe N” to investigate the possibility of suppressed research. It is, of course, possible with cleverness and organization to get around that sort of analysis in a way that it isn't with pre-registration, but that requires an actual conspiracy rather than just not publishing negative results.

btilly 13y ago
...but that requires an actual conspiracy... No, it doesn't require actual conspiracy. All that it requires is that a subpopulation of researchers has consistent biases which you didn't completely correct for. Given how statistics works, the larger the meta analysis, the smaller the portion of biased researchers you need to come up with compelling statistics.