Biostatistics & Research · single question
A p-value of 0.04 is found for the difference in plaque reduction between two treatments. Which statement is correct?
Show answer and explanation
Correct answer: A. The result is statistically significant
- A. CORRECT. A p-value of 0.04 is below 0.05, so the result is statistically significant and unlikely to be due to chance alone.
- B. INCORRECT. This is contradictory. A statistically significant result means it is unlikely to be due to chance.
- C. INCORRECT. At p = 0.04 the result is significant, so this is false.
- D. INCORRECT. The p-value measures statistical significance, not the size of the effect.
Practice Biostatistics & Research questions Biostatistics & Research study notes