An independent-measures study has M₁ = 49 and M₂ = 45 with an estimated standard error of 4.For this study,Cohen's d = 4/4 = 1.00.

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To calculate Cohen's d in an independent-measures study, the pooled standard error should be used, which is calculated by taking the square root of the sum of the variances divided by the total sample size minus 2. Therefore, without information on sample sizes and variances, we cannot calculate Cohen's d.

An Independent-Measures Study Has M₁ = 49 and M₂ =