He decides go through with making his experiment a repeated-measures design. Each of the 20 subjects...

He decides go through with making his experiment a repeated-measures design. Each of the 20 subjects take part in both conditions, and he finds a mean of the difference scores is 12 (M_D = 12) with a standard deviation of the difference scores of 8 (S_D = 8). Please find the t-critical and the test statistic (assuming alpha = .05_{2 tail)}. Then describe what the found.

t_crit =

t-statistic =

Conclusion:

Finally, he wants to know the magnitude of the effect of the drug. Please calculate the Cohen’s d and interpret what it means.

Cohen’s d =

Interpretation:

Expert Solution

milcah answered 4 months ago

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