Social Studies, 24.04.2020 04:16 mckennacwilliams
A psychologist is interested in determining whether a new online pain management program improves (reduces) pain scores for its participants. He assigns 20 subjects to the treatment condition and 20 to the control, and he measures pain intensity on a 1-10 scale. The treatment and control means are 7 and 5, respectively. Which of the following standard deviation values would produce the largest standardized mean difference?
a. 2
b. 1
c. 3
d. The standard deviation does not influence the standardized mean difference
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