Which of the following is an advantage for selecting related samples compared to selecting independent samples in behavioral research?
A) Selecting related samples can be more practical.
B) Selecting related samples minimizes standard error.
C) Selecting related samples increases power.
D) All of these.

Question

Quizplus · Accepted Answer

Selecting related samples can be more practical in situations where it is difficult or impossible to obtain independent samples (such as comparing the performance of the same individuals before and after an intervention). Additionally, related samples tend to have smaller standard errors because there is less variability between the samples. This reduction in standard error can increase the power of statistical tests, making it more likely to detect significant differences between groups. Therefore, selecting related samples can provide practical, statistical, and methodological advantages over selecting independent samples.

Which of the Following Is an Advantage for Selecting Related