A Researcher Was Interested in Comparing Maths Scores by Gender

question 14

Multiple Choice

A researcher was interested in comparing maths scores by gender and used a t-test to do so.The mean for males was 66.25 and the mean for females was 78.24,with both groups having a standard deviation of 7.What is the effect size using Cohen's d?

• A)1.7
• B)0
• C)1.712
• D)-1.712

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