Beliefs

Beliefs. The first component is beliefs. A consumer may hold both positive beliefs toward an object (e.g., coffee tastes good) as well as negative beliefs (e.g., coffee is easily spilled and stains papers). In addition, some beliefs may be neutral (coffee is black), and some may be differ in valance depending on the person or the situation (e.g., coffee is hot and stimulates--good on a cold morning, but not good on a hot summer evening when one wants to sleep). Note also that the beliefs that consumers hold need not be accurate (e.g., that pork contains little fat), and some beliefs may, upon closer examination, be contradictory (e.g., that a historical figure was a good person but also owned slaves).

Since a consumer holds many beliefs, it may often be difficult to get down to a "bottom line" overall belief about whether an object such as McDonald’s is overall good or bad. The Multiattribute (also sometimes known as the Fishbein) Model attempts to summarize overall attitudes into one score using the equation:

That is, for each belief, we take the weight, or importance (W_i) of that belief and mutiply it with its evaluation (X_ib). For example, a consumer believes that the taste of a beverage is moderately important, or a 4 on a scale from 1 to 7. He or she believes that coffee tastes very good, or a 6 on a scale from 1 to 7. Thus, the product here is 4(6)=24. On the other hand, he or she believes that the potential of a drink to stain is extremely important (7), and coffee fares moderately badly, at a score -4, on this attribute (since this is a negative belief, we now take negative numbers from -1 to -7, with -7 being worst). Thus, we now have 7(-4)=-28. Had these two beliefs been the only beliefs the consumer held, his or her total, or aggregated, attitude would have been 24+(-28)=-4. In practice, of course, consumers tend to have many more beliefs that must each be added to obtain an accurate measurement.