In an experimental study, investigators examine preventions and treatments for diseases by actively manipulating which groups receive the agent under study.
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Q10: Within the field of epidemiology, the term
Q11: An ecological study focuses on groups of
Q12: A scientific study in which participants self-selected
Q13: Factors such as race, age, sex, and
Q14: A confounding factor is a "hidden" factor
Q16: The first step of the scientific method
Q17: Epidemiology is the basic science of public
Q18: A single individual with a confirmed diagnosis
Q19: Epidemiologic methodology can be used to determine
Q20: Crude birth and death rates are not
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