How to Run Effective Clinical Trial Advertising Tests In clinical trial advertising, running tests to find your most successful ads is one of the best ways to improve your campaigns. But it's also easy to set up tests incorrectly and skew your results. Follow these tips to create effective tests that give you valuable information about the best way to reach your audience. Step 1: Choose one factor to test at a time. You may have several different ideas that you're interested in exploring...