In a two-group intervention study, what is the meaning of a t-test with p value of 0.03 result?
A) There is a high probability that in the population the two groups are truly different on the outcome.
B) There is a low probability that in the population the two groups are truly different.
C) The two groups had similar outcomes.
D) The probability of the outcome occurring is low.

Question

Quizplus · Accepted Answer

A p-value of 0.03 indicates that there is a statistically significant difference between the two groups, with only a 3% probability that the observed difference is due to random chance.

In a Two-Group Intervention Study, What Is the Meaning of a T-Test