(a) Discuss two techniques that researchers have used to reduce nonresponse during data collection. (b) Assuming that many randomly selected respondents nonetheless refuse to participate, describe two techniques that researchers can use to reduce the biasing effect that these refusals might have on survey estimates.

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The Answer of (a) Discuss two techniques that researchers have used to reduce nonresponse during data collection. (b) Assuming that many randomly selected respondents nonetheless refuse to participate, describe two techniques that researchers can use to reduce the biasing effect that these refusals might have on survey estimates.

(A) Discuss Two Techniques That Researchers Have Used to Reduce