A researcher reports that the mean difference in response time to an auditory versus a visual cue is 0.83 s, with a pooled sample variance equal to 2.45. What is the effect size for this test using estimated Cohen’s d?
A. d = 0.53; medium effect size
B. d = 0.53; large effect size
C. d = 0.34; small effect size
D. d = 0.34; medium effect size
Ans: A
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