Question

An independent-measures research study with n= 5 participants in each treatment produces sample variances of 8 and 10, and a 2-point difference between the two treatment means (i.e.,M1 - M2=2). Given this information, what is the value of Cohen's d? 2/2 2/3 2/9 2/18

          An independent-measures research study with n= 5 participants in each treatment produces sample
variances of 8 and 10, and a 2-point difference between the two treatment means (i.e.,M1 - M2=2).
Given this information, what is the value of Cohen's d?
2/2
2/3
2/9
2/18

An independent-measures research study with n= 5 participants in each treatment produces sample
variances of 8 and 10, and a 2-point difference between the two treatment means (i.e.,M1 - M2=2).
Given this information, what is the value of Cohen's d?
2/2
2/3
2/9
2/18

Added by Kurt C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert David Nguyen

06/20/2022

Step 1

Step 1: Calculate the pooled standard deviation (Sb) using the formula Sb = sqrt(((n1-1)*S1^2 + (n2-1)*S2^2) / (n1 + n2 - 2)) Given n1 = n2 = 5, S1^2 = 8, S2^2 = 10: Sb = sqrt(((5-1)*8 + (5-1)*10) / (5 + 5 - 2)) Sb = sqrt((4*8 + 4*10) / 8) Sb = sqrt((32 + 40) / Show more…

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An independent-measures research study with n=5 participants in each treatment produces sample variances of 8 and 10, and a 2-point difference between the two treatment means (i.e., M1 - M2=2). Given this information, what is the value of Cohen's d? 2/2 2/3 2/9 2/18