A repeated-measures study and an independent-measures study both produced a t statistic with df = 10.How many individuals participated in each study?
A)12 for repeated-measures and 11 for independent-measures
B)12 for repeated-measures and 12 for independent-measures
C)11 for repeated-measures and 11 for independent-measures
D)11 for repeated-measures and 12 for independent-measures

Question

Quizplus · Accepted Answer

For a repeated-measures study, df = n - 1, so n = 11. For an independent-measures study, df = n1 + n2 - 2, so n1 + n2 = 12, assuming equal group sizes, n1 = n2 = 6, totaling 12 individuals.

A Repeated-Measures Study and an Independent-Measures Study Both Produced a T