What can a nurse researcher use to restrict the study population to homogeneous groups of subjects?
a. Sampling
b. Self-selection
c. Eligibility criteria
d. Defining study limitations
ANS: C
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A Sampling does not mandate restricting the population to a homogeneous group of subjects.
B Self-selection would not restrict subjects to a homogeneous group.
C Eligibility criteria restrict or control the homogeneity of subjects in relation to the population.
D Specifying study limitations would not restrict subjects to homogeneity.
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