If you have a paired-samples design, you can be sure that
A) a Type I error is not possible
B) a Type II error is not possible
C) a confidence interval is not appropriate
D) there is a logical reason to pair the scores in the two groups.

Question

Quizplus · Accepted Answer

In a paired-samples design, the scores in the two groups are logically paired or matched based on certain criteria (e.g., the same participants measured at two different times, or matched participants across conditions), which is why there is a logical reason to pair the scores in the two groups. This design does not inherently prevent Type I or Type II errors, nor does it make confidence intervals inappropriate.

If You Have a Paired-Samples Design, You Can Be Sure