5 Learning Strategies For Improving Ad Productivity
John Kastenholz UnileverCharles Young Ameritest
Like the children of Lake Wobegon, all advertising ideas are above average if you believe the spin. But the statistical reality of the bell curve is that only 30 in 100 ads you test will score above average; 40 out of 100 must, at least the first time you test them, score only...