Meta-analysis studies have made it possible to sort through apparently contradictory research by looking at the bigger picture.
A new analysis shows that coffee is associated with a host of positive health effects.
Researchers need to be able to draw conclusions based on previously published studies in their field. A new aggregation method synthesizes prior findings and may help reveal more of the big picture.
Studies can't predict an individual's behavior. But meta-analyses of social science research turn up differences in men's versus women's leadership styles, on average.