How could a nurse researcher control for selection bias in a study?
A) By allowing subjects to self-select into an experimental or a control group
B) By hand picking the subjects for the study and determining the group assignment
C) By using defined selection criteria for approaching potential subjects
D) The task of selecting subjects should not be performed by the researcher conducting the study.

Question

Quizplus · Accepted Answer

Correct C: Defined selection criteria that are consistently applied help gain a representative sample and decrease risk of selection bias.
Incorrect A: Self-selection could worsen selection bias rather than control it.
Incorrect B: Researcher bias in selecting subjects could worsen selection bias.
Incorrect D: The researcher can select subjects,providing subjects meet specified selection criteria.

How Could a Nurse Researcher Control for Selection Bias in a Study