Mehl (2007) published a study in the journal Science reporting the results of an extensive study of 396 men and women comparing the number of words uttered per day by each sex.He found that on average women uttered 16,215 words a day and men uttered 15,669 words a day.The effect size calculated on the basis of his findings is Cohen's d = 0.07.According to Cohen's conventions for interpreting d, this effect is:
A) small.
B) medium.
C) large.
D) so small as to be considered virtually no effect.

Question

Quizplus · Accepted Answer

Cohen's d = 0.07 is considered very small, indicating a negligible difference between the groups in terms of the effect size. Cohen's conventions suggest that a d of 0.2 is small, 0.5 is medium, and 0.8 is large, making 0.07 virtually no effect.

Mehl (2007) Published a Study in the Journal Science Reporting