Reports on health studies appear on the news regularly. You might read one study that touts the benefits of a food – like chocolate, for example—while a different study doesn’t find the same benefits. These differing reports can get confusing . . . who you should believe?
Scientific studies are done in order to test a hypothesis—an assumption that needs to be investigated further. There are different types of studies—some look at past data collected while others compare data from subjects over months or even years. Other studies divide the group of subjects into 2 groups, giving only 1 of the groups the “treatment” (or food) while the other group is given a “control” oftentimes called a placebo.
The results are then compiled, statistical analysis is performed and conclusions are drawn.