'Liking', 'Buying', 'Choosing' and 'Take Away' preference tests for varying degrees of hedonic disparity.

摘要

Paired preference tests of liking require consumers to specify which of two foods are preferred or whether there is no preference. For "Buying" preference tests, consumers specify which of two foods they are more likely to buy or whether they might buy either or neither. For "Choosing" preference tests, consumers specify which of two foods they are more likely to choose when offered both, or whether they might choose both or neither. The first test is designed to predict greater degrees of liking, the second to predict buying behavior and the third to predict choice behavior. Yet, test results may not necessarily predict "real life" behavior once consumers have left the testing situation; the "test" preferences may not be "operational". To validate the predictive ability of such tests, consumer behavior should be monitored for several months. Another approach is to allow consumers to take away some of the foods used in the test and observe what they take away. Consumers of potato chips were required to taste chips whose flavor and appearance were obviously different. A first group (N = 107) were given "Liking", "Buying" and "Choosing" preference tests for two palatable types of chip. After the test, out of sight of the experimenter, consumers were presented with two rows of plain plastic "snack" bags, filled with the chips used in the test. They could take away either two bags of the same type of chip (a "Take Away" preference) or one of each type (no "Take Away" preference) or take neither (rejection). They were also subtly questioned regarding whether they were going to consume the chips themselves or were going to share them with friends. A second group (N = 103) repeated the experiment. However, for these consumers, one type of chip was unpalatable. In general, "Buying" preferences corresponded more to "Take Away" preferences while "Liking" and "Choosing" preferences showed little correspondence. For the palatable chips, the preferences were spread more evenly than for the case where one type of chip was undesirable. In this latter case, approximately 50% of consumers were consistent over all tests in choosing the palatable chip. This might suggest operational preferences. "Take Away" preferences suggested low predictability for paired preference tests of liking, choosing and buying. "Take Away" preferences are not a substitute for monitoring consumer behavior for several months but they are a step in the right direction.