How Would a Nurse Researcher Ensure That the Sample Used

question 2

Multiple Choice

How would a nurse researcher ensure that the sample used in a research study is homogeneous?

• A) Restrict eligibility criteria to limit extraneous variables relevant to the study.
• B) Randomly assign subjects to either the experimental or the control group.
• C) Assign one research assistant to collect all data.
• D) Collect all data at the same time of day.

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Definitions:

Epigenetics

The study of how behaviors and environment can cause changes that affect the way genes work, without altering the DNA sequence.

Twin Studies

These are research designs in psychology and genetics that compare the similarities and differences between monozygotic (identical) and dizygotic (fraternal) twins to understand how genetic and environmental factors influence traits.

Genotype

The genetic constitution of an individual organism, often in contrast to their expressed characteristics or phenotype.

Testosterone Levels

The concentration of the hormone testosterone in the bloodstream, affecting physical development, sexual functions, and mood.