Methods for the evaluation of stimuli such as broadcast commercials intended to promote purchases by shoppers are disclosed. The methods quantify the effectiveness of controlled variables of stimuli and of inducements associated therewith. The immediate impact and degree of erosion of the impact of stimuli...http://www.google.de/patents/US5227874?utm_source=gb-gplus-sharePatent US5227874 - Method for measuring the effectiveness of stimuli on decisions of shoppers
