50 people are asked to respond to a question with the answers Yes/No/Don't know on two occasions. On the first occasion, the responses were 15/25/10 and on the second 18/26/6. What is the change in the number of positive responses as a percentage of the whole sample?

Which of the following would NOT be a primary reason for analyzing demographic information collected as part of a survey?

Which of the following is NOT an 'experimental' form of market research?

Which of the following is NOT a characteristic of 'covert observational' market research

Which of the following conclusions should be drawn from the voting phenomenon commonly known as the 'Bradley effect' (or 'Wilder effect')?

What is the 'modal' value of the following: 2, 2, 2, 3, 3, 4, 5, 5?

Which of the following goals is most commonly associated with the use of 'projective' techniques in market research?

'Scenario planning' can be used to draw conclusions about the future state of a market. Which of the following best characterizes this approach?

In which of the following pieces of information would a mystery shopper NOT be fundamentally interested?

Which of the following best describes the purpose of 'Ad Tracking'?