The assumption of homogeneity of variance is met when
A) The variance in one group is twice as big as that of a different group.
B) Variances in different groups are approximately equal.
C) The variance across groups is proportional to the means of those groups.
D) The variance is the same as the interquartile range.

Question

Quizplus · Accepted Answer

The assumption of homogeneity of variance is met when the variances in different groups are approximately equal. Choice A is incorrect because when the variance in one group is twice as big as that of a different group, it violates the assumption of homogeneity of variance. Choice C is incorrect because the variance across groups should not be proportional to the means of those groups. Choice D is incorrect because the variance is not the same as the interquartile range; they are two different measures of variability.

The Assumption of Homogeneity of Variance Is Met When