As test database specialist at MECLABS Institute (parent company of MarketingExperiments), I maintain our library of tests, analyze the results and search for insights to inform future testing. The chart below breaks all of our 2015 tests down by category and stacks them by count.
As you can see from the big bars on the left, most of the tests we ran in 2015 focused on value copy and friction.
Now look at the outcome of all those tests in the box plot below. This chart measures level of confidence along the left-hand side, and the boxes contain 50% of the data, centered on the midpoint, represented by the black line. Straight away, you can get a good idea of the general performance for each category. Higher level of confidence is better, and we ideally want everything to be above 95%. So how did the value copy and friction tests do?