Which of the following is true about Cohen's d?
a. It is a measure of unstandardized effect and defined as the difference in the means for two samples divided by the standard deviation of the difference.
b. It is a measure of standardized effect and defined as the difference in the means for two samples divided by the standard deviation of the difference.
c. It is a measure of unstandardized effect and defined as the correlation for two samples divided by the standard deviation of the difference.
d. It is a measure of standardized effect and defined as the difference in the correlation for two samples divided by the standard deviation of the difference.
Answer: b. It is a measure of standardized effect and defined as the difference in the means for two samples divided by the standard deviation of the difference.
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a. True b. False
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