How do you calculate the systematic variance?
A) Find the deviation of the individual scores from the group mean.
B) Find the deviation of the group means from the grand mean.
C) Find the deviation of error variance from the group mean.
D) Find the deviation of error variance from the grand mean.

Question

Quizplus · Accepted Answer

Systematic variance is the variance that is caused by the manipulated independent variable. To calculate it, we need to find the deviation of the group means from the grand mean. This is because we are interested in the differences between the groups that result from the manipulation of the independent variable. Option A is incorrect because it refers to the calculation of individual scores which is not relevant to the calculation of systematic variance. Options C and D are incorrect because they refer to the deviation of error variance which is not the same as systematic variance.

How Do You Calculate the Systematic Variance