In a study comparing 4 group means, the number of the between groups degrees of freedom is:
A)The total sample size.
B)One.
C)Three.
D)Four.

Question

Quizplus · Accepted Answer

The between groups degrees of freedom is equal to the number of groups minus one, so in this case it is 4-1=3. A) is incorrect because the total sample size does not give information about between group differences. B) is incorrect because there are more than one group being compared. D) is incorrect because the number of between groups degrees of freedom is not the same as the number of groups being compared.

In a Study Comparing 4 Group Means, the Number of the Between