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strengejacke
Effect Size Computation for Meta Analysis
I noticed there are different results when calculating effect size with information available for both treatment and control groups on sample size and the mean and SD for pretest and...
There is no missing value in my dataset for the pretest, posttest mean, sd, and sample size. However, when I used the function esc_mean_gain(), some rows return with g and...
When I want convert (un)standardized beta to r, I can't use vectors with esc_beta or esc_B , but it is ok if I convert beta in d or g. It...
Thanks for this handy package! I was trying to use it programmatically, and constructed a call to convert multiple effect size types at once - which then results in unexpected...
Hello Daniel, I have a data frame of 127 studies with the mean and SD that I want to transform into Hedges' g. But now I am updating my R...
(via mail) I noticed in the esc package that the formula for converting unstandardized b to d is incorrect as it utilizes the total sample variance/SD rather than the pooled...
I ran the following code and got a different result than with the web-based 'Practical Meta-Analysis Effect Size Calculator' from David B. Wilson () esc_2x2( grp1yes = 205, grp1no =...
Hi Daniel & all, Does anyone know whether group1 should always be treatment group and group2 as control? For some functions like convert_d2r and esc_B, it is stipulated to enter...
Hello, Thank you very much for the nice package. I have a question when using the package. I was using the function esc_mean_sd() to convert means and sds to a...
Nice package. I have studies to meta-analyze that report mean differences between the treatment and control groups rather than the mean and SD for each group. Is there a way...
