Compute a mean effect size and its confidence limits. Kapoor et al. (2010) collected data on the

Question:

Compute a mean effect size and its confidence limits. Kapoor et al. (2010) collected data on the treatment of multiple myeloma, which is a cancer of the blood.
(You may think that this has little to do with psychology, and you€™d be right, but I have multiple myeloma, so I have a particular interest in the results.) They found four studies since 2007 that compared a standard chemotherapy treatment for myeloma with the same treatment that also included thalidomide.(Thalidomide was a drug prescribed as a sedative to pregnant women in the 1950s and was then found to create horrible problems with birth defects and was immediately withdrawn, but not until after causing 10,000€“20,000 birth defects worldwide. It has recently been found to be an excellent treatment for some forms of cancer, though it is used with a great deal of caution.) The following table presents the results of the four studies.