Pa370 kaplan quiz - Study guides, Class notes & Summaries

The plague resulted in the death of many during the Middle Ages was an example of a(n): The area of medicine that investigates the causes, distribution and frequency of diseases within the population is: In _____ research, neither those that collect data or research participants know the actual research purpose of the study. The group receiving the treatment or condition is the: The procedure used to minimize differences between experimental and control groups through assignment to groups by...