1. Negative ads are more effective than positive ones.
2. Campaign ads are uninformative.
3. Less-informed voters are more easily swayed by ads.
4. A candidate should respond to an attack ad with a counterattack on the same issue.
5. News organizations neutralize misleading ads by fact-checking them.

These are from an article by University of Michigan political scientist Ted Brader in theWashington Post as part of their “five myths” series. In the article, Brader expands on each of these point and include links to a wide-variety of political science research.