A nurse researcher can control for selection bias in a study by taking which of these actions?
a. Allow subjects to self-select into an experimental or a control group
b. Handpick the subjects for group assignment
c. Use defined selection criteria for approaching potential subjects
d. Have someone other than the researcher select the subjects for the study
ANS: C
Feedback
A Self-selection could worsen selection bias, rather than control it.
B Researcher bias in selection subjects could worsen selection bias.
C Selection criteria (inclusive and exclusive) that are consistently applied help obtain a representative sample and decrease the risk of selection bias.
D The researcher can select subjects, providing subjects meet specified selection criteria.
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