The nurse researcher selects matching as a technique in a research study. What does the technique of matching in a sampling strategy contribute to the research?
a. Improved overall design of the study
b. Elimination of the need for a control group
c. Increased equivalency of the comparison group
d. Reduced sample size; subjects serve as their own controls
ANS: C
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A Matching by itself will not improve study design.
B Matching does not eliminate the control group; rather, it helps make equivalence between it and the treatment group.
C Matching is a special strategy used to construct an equivalent comparison group.
D Matching does not decrease sample size, and subjects do not serve as their own controls.
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