Suppose you conducted a study comparing the means of two groups. You conduct a group t-test and observed p

Question

Suppose you conducted a study comparing the means of two groups. You conduct a group t-test and observed p < .05. You can conclude:
A) the study worked.
B) there is a large difference in the means between the groups.
C) which group, in the population, likely has the higher mean.
D) the study failed.

Quizplus · Accepted Answer

A significant difference between the means suggests that one group had a higher mean than the other. However, we cannot conclude whether the study worked or failed based solely on the significance level. Additionally, we cannot determine the size of the difference between the means from the significance level alone.

Suppose You Conducted a Study Comparing the Means of Two