Selecting and Recruiting Subjects Significant differences between treatment groups are more difficult to detect when
A)members of the population resemble one another on the dependent variable.
B)researchers select subjects using nonprobability sampling.
C)researchers assign a small number of subjects to each treatment condition.
D)the effect size of the independent variable is large.

Question

Quizplus · Accepted Answer

When researchers assign a small number of subjects to each treatment condition, it reduces the statistical power of the study, making it more difficult to detect significant differences between treatment groups.

Selecting and Recruiting Subjects Significant Differences Between Treatment Groups Are