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Yes, I agree that p-value tests have flaws. If you look at the data to determine your hypothesis it's easy to overfit. Bayes factor appear to solve this issue.
by acover 10y ago
Yes, I agree that p-value tests have flaws. If you look at the data to determine your hypothesis it's easy to overfit.
Bayes factor appear to solve this issue. I disagree that this is a basic education issue. It is a lack of agreement among scientists as to what statistical analysis is appropriate.
- Almaviva 10y ago"So it’s 99.5% that it occurred due to warming over the industrial era" There are at least a couple of statistical fallacies in this conclusion. And there isn't a lack of agreement about that. One problem with p-value tests is precisely that people misunderstand what the p-value means, which is where basic education comes in. It could save people from believing a lot of things they shouldn't. (Like many health and fitness crazes over the last generation, for instance) Or at the very least, we could train science journalists.
- acover 10y agoDo you agree to the statement "so it's 99.5% that we correctly reject the hypothesis it occurred without warming over the industrial era"?
- mnarayan01 10y agoI think you're mainly correct. The main issue is that there's an implied "given that the model from http://www.nature.com/ngeo/journal/v10/n2/full/ngeo2863.html http://www.nature.com/ngeo/journal/v10/n2/full/ngeo2863.html is 'perfect' (at least for this case)". Since it seems unlikely that the model is perfect, the numbers they give are almost certainly inflated.
- acover 10y agoNope. I'm totally wrong.