A researcher reports a significant mean difference in a given population.If she computes both eta-squared and omega-squared to measure the effect size,then which estimate will be the most conservative?
A)eta-squared
B)omega-squared
C)It depends on the sample size.
D)It depends on the value of the t statistic.

Question

Quizplus · Accepted Answer

Omega-squared is considered to be the more conservative estimate of effect size because it takes into account the bias introduced by using a sample estimate of population variance. Eta-squared is more commonly reported in research, but omega-squared is preferred when the assumption of homogeneity of variance is violated or when sample sizes are small. Therefore, B is the correct answer.

A Researcher Reports a Significant Mean Difference in a Given