If Other Factors Are Held Constant,how Does Sample Variance Influence

Multiple Choice

If other factors are held constant,how does sample variance influence the likelihood of rejecting the null hypothesis and measures of effect size such as r² and Cohen's d?

A) Larger sample variance increases both the likelihood and measures of effect size.
B) Larger sample variance increases the likelihood but has little influence on measures of effect size.
C) Larger sample variance decreases the likelihood but has little influence on measures of effect size.
D) Larger sample variance decreases both the likelihood and measures of effect size.