What is considered medium effect size for t test for mean

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A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the distribution of means of change scores is 2.0 and the mean change score for the sample studied is an increase of 5.2. What is considered a medium effect size for a t test for dependent means?

Reference no: EM13147508

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