Question

In a study on sex differences in agreeableness, the women scored 0.10 standard deviations higher, on...

In a study on sex differences in agreeableness, the women scored 0.10 standard deviations higher, on average, than the men. What does this mean?

There was a strong relationship between sex and agreeableness.

Pearson's r was 0.10.

The researcher must have made an error in the computations.

Cohen's d was 0.10.

Math   Statistics-And-Probability   
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Answer #1

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Correlation is about relations, and their strength and directions , and not about differences is means. Here we talk about how much different are woman and men on sex diffeerences in agreebleness. So, Pearson' r was .10 is wrong.

Also, 1st option is also correct for the same reason

3rd option is incorrect as Cohen'd can conveys exactly what we want i.e. how many deviations is the difference of means.The Cohen' d conveys the effect size used to indicate the standardised difference between two means.

Hence, answer: is Cohen's d was 0.10.

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