"Several of our divisions have lately been using this so-called minimarket¬ testing method. We had some shaving products use Behavior Scan, and a new upscale bandage line used a somewhat similar service from A. C. Nielsen. But I am increasingly concerned about the panel members in those test cities. My concern is not that the people become accustomed to the testing or that they overreact to stimuli. These are valid concerns, but there's not much I can do about them. I am concerned, however, that our people do not know the effect of these things on the data we get. How would the results of our tests be affected if people like the testing too much? Or, if they tend to become professional test participants and begin thinking like judges?"