People with the most extreme views opposing genetically modified crops and foods also tend to think they know most about the science on the subject. The team surveyed more than 2,000 American and European adults about their opinions on genetically modified food and how well they thought they understood the science behind it. A battery of tests later assessed each participant’s actual knowledge of GMO science. But the study’s main finding was that the more participants are opposed to genetically modified foods, the more likely they are to think they’re knowledgeable on the subject. This happens not only at a low level of knowledge, but also at well above average levels, as explained by Steve Novella on his blog.