39. A medicinal trial concludes that a new drug is effective based on a p-value less than 0.05. However, there was a high loss to follow-up among participants. What critical biostatistical concern arises?
A.
The p-value is too high.
B.
The study had too much power.
C.
Loss to follow-up can introduce bias and threaten the internal validity of the study.
✓
D.
The drug is definitely effective.
📖 Additional Information
The p-value is too high.
The study had too much power.
Loss to follow-up can introduce bias and threaten the internal validity of the study.
