Asked by Somtochi Ibezim on Jun 07, 2024
Verified
Which of the following statements about matched-pairs sampling is correct?
A) It is a procedure that matches each unit from population A with a "twin" from population B so that any sample observation about a unit in population A automatically yields an associated observation about a unit in population B.
B) It is designed to control for extraneous factors that might influence the characteristic being measured in addition to the variable under study.
C) When testing the effectiveness of a new drug compared to a traditional one, each patient in an experimental group might be matched with a partner in a control group of the same age, weight, height, sex, occupation, medical history, lifestyle, and so on.
D) All of these.
E) None of these.
Control Group
A group in an experiment that does not receive the treatment being tested and is used as a benchmark to measure how the other tested groups do.
Matched-Pairs Sampling
A sampling method that involves pairing up subjects based on certain criteria before applying different treatments to each member of the pair.
Extraneous Factors
Variables that can influence the outcome of an experiment but are not the variables being studied.
- Describe the logic underpinning the use of paired-difference experiments and their merits.
Verified Answer
Learning Objectives
- Describe the logic underpinning the use of paired-difference experiments and their merits.
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