When researchers have a good estimate of the expected effect size for an independent variable prior to conducting a study,they should
A)compute an inferential statistics test.
B)perform a power analysis.
C)draw confidence intervals for their means.
D)all of these

Question

Quizplus · Accepted Answer

Prior to conducting a study, performing a power analysis is the best way to estimate the required sample size and statistical power based on an expected effect size for an independent variable. This can help ensure that the study will have sufficient power to detect the hypothesized effect. While computing inferential statistics and drawing confidence intervals may be important steps in data analysis, they do not pertain to the decision-making process before a study is conducted.

When Researchers Have a Good Estimate of the Expected Effect