Advertising creations are the most important influencing factor for the campaigns success. A badly performing creation ruins every campaign! At the same time, the entire campaign budget may be wasted. It is only sensible to safeguard against this by subjecting the creation to a pre-test. This costs only a fraction of the campaign budget and provides a reliable prognosis of whether the campaign will be successful even before it goes live. Furthermore, the pre-test provides information on possible optimisations of the creation. A creation optimised in this way leads to a significantly higher advertising impact for the same media budget.