In psychological experiments, the generally accepted rule is that the difference between groups is statistically significant if it would have happened by chance only of the time at most.
A) 50 percent
B) 25 percent
C) 5 percent
D) 0 percent

Question

Quizplus · Accepted Answer

The generally accepted rule in psychological experiments for a difference between groups to be considered statistically significant is that it would have occurred by chance 5 percent of the time or less. This is known as the p < .05 criterion.

In Psychological Experiments, the Generally Accepted Rule Is That the Difference