Identify the most important limitation of the survey method of epidemiological research.
A) An entire population cannot be studied.
B) They can only make suggestions about causal influences.
C) Samples can never be entirely randomized.
D) Behavior of groups can quickly change.

Question

Quizplus · Accepted Answer

Surveys in epidemiological research are primarily observational, meaning they can identify associations between variables but cannot definitively establish causality. This is because they often cannot control for all the external variables that might influence the outcomes, unlike experimental designs where conditions can be controlled to establish cause and effect relationships.

Identify the Most Important Limitation of the Survey Method of Epidemiological