Identifying the Errors in Meta Analyses

60% of the effect sizes three or greater that we found had the same mathematical error as the states at LP paper, which is they mixed up standard deviation and standard error. So if you've got a study that had a really large effect size and you think it's real, of course, most of the ones that we found were actually wrong. They were just errors. Um, I would hope that, uh, you know, when there's a very large effect size like this that you would think to have some explanation or think about why it exists in the paper.