A researcher conducts an independent-measures study. One sample of individuals ...

A researcher conducts an independent-measures study. One sample of individuals serves as a control group and another sample serves as a treatment group. The researcher hypothesizes that the two samples will be different on the dependent variable.

The data are as follows:

Control

Treatment

n = 6

n = 9

M = 56

M = 62

SS = 470

SS = 700

α = .05, two-tailed

a.) Following the steps of a hypothesis test, first determine whether the two groups differ in terms of their sample means.

b.) Second, calculate Cohen’s d and r2.

c.) Finally, Write a sentence demonstrating how the results of the hypothesis test and the measure of effect size (use either d or r2) would appear in a research report.