Which of the following statements about sales tests is MOST accurate?
A. With sales tests, additional product information, product samples, or premiums are offered to an ad's readers or viewers, and ads generating the cost inquiries are presumed to be the most effective.
B. With sales tests, a question such as, "What ads do you remember seeing yesterday?" is asked of respondents without any other prompting to determine whether they saw or heard advertising messages.
C. Sales tests involve studies such as controlled experiments and consumer purchase tests to measure actual purchases.
D. In a sales test, respondents are asked questions to measure changes in their attitudes after an advertising campaign, such as whether they had a more favorable attitude toward the product advertised.
E. In a sales test, respondents are first shown an ad and then asked whether their previous exposure to it was through reading, viewing, or listening.
Answer: C
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