If the researcher suspects that the strength of the relationship between two variables in the population is .30 as indexed by Cramer's statistic,what sample size should she use in a study involving a 2 x 4 contingency table and an alpha level of .05 to achieve a power of .80?
A)58
B)76
C)121
D)172

Question

Quizplus · Accepted Answer

To achieve a power of 0.80 with an alpha level of 0.05 for a 2 x 4 contingency table and an expected Cramer's V of 0.30, a sample size of 121 is required.

If the Researcher Suspects That the Strength of the Relationship