I need assistance on this matter. I have an ANOVA reported in a paper and the baseline means and SD, p value and sample sizes, but I really need to extract the post-treatment mean and SD. Is there any possibility of doing that? Can you suggest a calculator that would do that? Thanks in advance.
If you have the effect size as the mean difference, then the post-treatment mean is the baseline mean + treatment effect. Under the assumption of variance homogeneity, the post-treatment SD is the same as the baseline SD.
Sorry but not enough information. Looks like this may be a repeated measure. Details like that are needed. Best, David
If you have the effect size as the mean difference, then the post-treatment mean is the baseline mean + treatment effect. Under the assumption of variance homogeneity, the post-treatment SD is the same as the baseline SD.
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