Which of the following research methods require the most care in interpreting the results?
A. Random sampling
B. Mail surveys
C. Telephone surveys
D. Personal interview surveys
E. All of the above
Answer: (E) All survey results require care in result interpretation. The researcher should be trained in this area. (A), (B), (C), and (D) all require care but are not the best answers for the question. Each must be analyzed carefully and the results accurately stated with care.