An article under the headline above was written by Sharon Begley and published in the May 7 issue of Newsweek.
She reminds readers: "For us civilians, it's hard to grasp how much of science is subjective, and especially how much leeway there is in choosing how to conduct a study. No one is alleging that scientists stack the deck on purpose. Let's just say that depending on how you design a study you can practically preordain the outcome."
Read the article to learn some of the study design tricks of the trade.