Determine whether the samples are independent or dependent. The effectiveness of a headache medicine is tested by measuring the intensity of a headache in patients before and after drug treatment. The data consist of
Before and after intensities for each patient.
A) Dependent samples
B) Independent samples

Question

Quizplus · Accepted Answer

The samples are dependent because the before and after intensities are measured for the same group of patients, thus making the measurements related to each other.

Determine Whether the Samples Are Independent or Dependent