Which of the Following Is NOT an Example of the Observation

Multiple Choice

Which of the following is NOT an example of the observation method of obtaining data?

A) The researcher classifies people into social class strata by personally rating the furniture in their homes via on-site visits.
B) An attitude researcher obtains people's reaction to a product display by showing them the display and then conducting depth interviews with the respondents.
C) A researcher assesses the popularity of various museum exhibits by noting tile wear in front of each exhibit.
D) A researcher notes the sex and race of each person making a purchase during a special sale.
E) All of the above are examples of the observation method.