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Correct Answer: C) Cluster.
Correct Answer: D) Experimental Method.
Correct Answer: C) Delphi Method.
Correct Answer: B) Cluster.
Correct Answer: D) Loyalty scheme.
Correct Answer: C) Structured.
Correct Answer: A) Direct Method.
Correct Answer: A) Convenience.
Correct Answer: A) Cluster sample.
Correct Answer: A) Schedule.
Correct Answer: D) Systematic.
Correct Answer: D) All of the above.
Correct Answer: B) Random sample.
Correct Answer: D) Census.
Correct Answer: A) Interviews.
Correct Answer: C) Voluntary response.
Correct Answer: D) Experiments.
Correct Answer: B) Can decrease their response rate.
Correct Answer: A) Experiment.
Correct Answer: D) When we make a prediction about what we think the results of an investigation will show.
Correct Answer: A) Pilot Survey.
Correct Answer: C) Sample Survey.
Correct Answer: D) Retrospective Interview.