A restaurant wants to determine how much their customers like the dinner specials prepared by the new restaurant chef. Which survey method is most likely to lead to response bias?

Response bias is most likely when the way a survey is administered influences what people say. If waitstaff ask customers questions face-to-face before they leave, customers may feel pressured to be polite and give overly positive ratings. Leaving sheets or posting a survey online may lead to self-selection bias, while mailing surveys may have low response rates, but those methods are less likely to directly influence an individual’s answers.

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