Meta-analysis is the statistical procedure for combining data from multiple studies. When the treatment effect (or effect size) is consistent from one study to the next, meta-analysis can be used to identify this common effect. When the effect varies from one study to the next, meta-analysis may be used to identify the reason for the variation.
Click here to visit the website http://www.meta-analysis.com
The access is unlimited and free for 1 month for teaching purposes
For more info, kindly contact Dr. Sandheep Sugathan