Myers' Psychology for the AP Course Third Edition Think about how we blindly consume medicine. Our craving for a solution, any solution to heal our physical troubles produces totally twisted theories. Taking tablets three days into a cold, we become children again and believe in magic instead of the more obvious, boring explanation that it naturally healed itself. In the 1700s, bloodletting seemed reasonable. People sometimes improved afterwards; when they didn't, psh, the disease was the problem not the so-called treatment. We have to control other variables to actually understand the effect of a remedy. And that is exactly how new medicines and methods of therapy came to be. Participants were randomly assigned into a control and experimental group. The first group receives the real deal (a true drug for example). The other group receives a bogus-treatment - a fake (maybe a pill with without a drug in it). The subjects are usually blind to which treatment they are rec...