Meta-analysis Stata's suite of commands for meta-analysis is broad yet easy to use. • E ect sizes: Hedges's g, Cohen's d, odds ratios, risk ratios, proportions New , correlations StataNow , and more • Com
then the estimate ofsigmais 3.312. This makes sense because as the sizes of the groups get larger, we expect that the group means (x) get closer tomu. Thus, if the spread of the group means stays the same as weight increases, thensigmamust be increasing. ...
With the by prefix, tabulate appends the resulting tabulations into a single collection, and the default layout produces a separate table for each by group. If you are not familiar with collections, see [TABLES] Intro. The predefined styles for tabulate are documented in [TABLES] Predefined ...