The control of variables can effectively improve the credibility of the experiment

Now that you’ve battle-tested your skills on these hypothetical studies and headlines,you can test them on real-world news.Even when full papers aren’t available without a fee,you can often find summaries of experimental design and results in freely available abstracts,or even within the text of a news article.Individual studies have results that don’t necessarily correspond to a grabby headline.Big conclusions for human health issues require lots of evidence accumulated over time.But in the meantime,we can keep on top of the science, by reading past the headlines.