Selecting and Recruiting Subjects A researcher should ____ to estimate the minimum number of subjects needed for each treatment group.
A)calculate actual effect size
B)consult a power chart
C)consult a table of random numbers
D)measure the dependent variable's fluctuation

Question

Quizplus · Accepted Answer

Consulting a power chart can help a researcher estimate the minimum sample size needed for each treatment group. The power chart takes into account the desired level of statistical significance, the expected effect size, and the desired power of the study.

Selecting and Recruiting Subjects a Researcher Should ____ to Estimate