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BS Nursing Epidemiology
nmdcat.online June 6, 2026

129. A study reports a strong association between exposure to a childhood viral infection and an adult autoimmune disease, but the study design is retrospective. What critical type of bias might affect this study?

A. Observer bias.
B. Recall bias.
✓
C. Selection bias.
D. Confounding.

📖 Additional Information

  • Observer bias.
  • Recall bias.
  • Selection bias.
  • Confounding.

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