For the independent-measures t statistic,what is the effect of increasing the sample variances?
A)Increase the likelihood of rejecting H0 and increase measures of effect size
B)Increase the likelihood of rejecting H0 and decrease measures of effect size
C)Decrease the likelihood of rejecting H0 and increase measures of effect size
D)Decrease the likelihood of rejecting H0 and decrease measures of effect size

Question

Quizplus · Accepted Answer

Increasing the sample variances increases the denominator of the t statistic formula, leading to a smaller t value. This decreases the likelihood of rejecting the null hypothesis (H0) and also decreases measures of effect size, as larger variances imply less reliable differences between group means.

For the Independent-Measures T Statistic,what Is the Effect of Increasing