The personnel director at a large company studied the eating habits of the company's employees. The ...

The personnel director at a large company studied the eating habits of the company's employees. The director watched and recorded whether each employee brought his/her own lunch to work, ate at the company cafeteria, or went out to lunch. What method of data collection was used here?
 a. Direct observation. c. A survey.
  b. An experiment. d. A personal interview.

Q. 2

A researcher conducts a study where she divides subjects into two groups, gives each group a certain treatment, and records their responses. What type of data collection is being used here?
 a. An experiment. c. A survey.
  b. Direct observation. d. A census.

Q. 3

Which of the following must be avoided in designing a survey?
 a. Dichotomous questions. c. Demographic questions.
  b. Leading questions. d. All of these choices are true.

Q. 4

A marketing research firm selects a random sample of adults and asks them a list of questions regarding their beverage preferences. What type of data collection is involved here?
 a. An experiment. c. Direct observation.
  b. A survey. d. None of these choices.