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BS Nursing Nursing Ethics
nmdcat.online June 6, 2026

What is “selection bias” in research?

A. Errors in data analysis.
B. A systematic difference between the participants selected for a study and the target population, or between treatment groups.
✓
C. A researcher's personal opinion.
D. The difficulty in recruiting participants.

📖 Additional Information

  • Errors in data analysis.
  • A systematic difference between the participants selected for a study and the target population, or between treatment groups.
  • A researcher's personal opinion.
  • The difficulty in recruiting participants.

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