Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 1

Which of the answer sets below best matches the strengths/weaknesses listed in the left column with the study designs in the right column?

___ More susceptible to individual characteristics that might confound an association (e.g., age, gender, genetic susceptibility).	A. Between-group design
	B. Within-group design
___More susceptible to confounding from time-related factors (e.g., learning effects, external factors).
___Outcome of interest is compared before and after the intervention in a single cohort.

Step 1 of 3

It has been considered that there are numerous kinds of experimental study designs that profoundly marked with their major strengths and weaknesses. The experimental study design refers to an epidemiologic design that has the capacity to produce high quality data to carry out controlled experiments by basic science group researchers. It is also useful for understanding the cause-effect relationships and evaluating the efficacy of prevention and therapeutic interventions.