A researcher selects a sample from a population with μ = 30 and uses the sample to evaluate the effect of a treatment. After tre
atment, the sample has a mean of M = 32 and a variance of s2 = 6. If Cohen’s d is used to measure the size of the treatment effect, which of the following would have no effect on the value of Cohen’s d?
Based on the sources, the answer is sample size.Meaning, sample size is the variable that might have no influence on the treatment effects and regardless can not be changed.
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