Following a significant t-test,Clarinda wants to calculate her Cohen's d value.She has and .Calculate the correct Cohen's d value.
A)d = 4.00
B)d = 0.707
C)d = 0.25
D)d = 0.50

Question

Following a significant t-test,Clarinda wants to calculate her Cohen's d value.She has  and  .Calculate the correct Cohen's d value.
A)d = 4.00 
B)d = 0.707 
C)d = 0.25 
D)d = 0.50

Quizplus · Accepted Answer

Cohen's d is a measure of effect size, which reflects the difference between the means of two groups in terms of standard deviation. It is calculated by dividing the difference between the means by the pooled standard deviation. Since the question does not provide the means and standard deviations of the two groups, it is impossible to obtain an exact value. However, Cohen's d is generally considered small at 0.2, medium at 0.5, and large at 0.8. Therefore, the correct answer would be B, as it is the only option within the typical range of a small to medium effect size.

Following a Significant T-Test,Clarinda Wants to Calculate Her Cohen's D