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(Choose 1 answer)
(23133) Saunders et al. (2012) stated that response rates can vary considerably when collecting primary data. However, you need to estimate the likely response rate to calculate the actual sample size. Which of the following estimation techniques will help?
A. (i) Consider the response rates achieved for similar surveys already taken.
B. (ii) Error on the side of caution, i.e. assume some low response rate.
C. (iii) Use a pilot survey to estimate the full response rate.
D. All of (i), (ii), and (iii).
