The most expensive approach per completed interview of the four ...

[drink]

The most expensive approach per completed interview of the four communication methods is generally
 a. personal interviews c. mail interviews
  b. telephone interviews d. Internet-based methods

Question 2

Which of the following refers to a fieldworker who is employed by the company conducting the research?
 a. primary interviewer
  b. personal interviewer
  c. in-house interviewer
  d. interview specialist

[meganmoser117]

Answer to Question 1

A
Personal interviews are typically the most expensive, due to labor costs for skilled interviewers.

Answer to Question 2

C