In order for epidemiologists to infer that Behavior A causes Disease B, they must observe
A) that Behavior A has taken place before Disease B takes place.
B) a dose-response relationship between Behavior A and Disease B.
C) a decline in Disease B when Behavior A is eliminated.
D) all of these relationships between variables exist.
Question 2
A direct, consistent relationship between the independent variable and the dependent variable
A) is an example of the placebo effect.
B) is an example of the nocebo effect.
C) defines dose-response relationship.
D) indicates a transverse relationship.
Formation of disease-causing amyloid fibrils
Classification of Overweight and Obesity by BMI, Waist Circumference, and Associated Disease Risks
Drugs for Peptic Ulcer Disease
The Molecular Structure and Behavior of Lipids
Chronic disease is caused by a mixture of genetic and environmental influences
Loss of brain cells in a transgenic Huntington-disease mouse. (a) Section of normal mouse-brain stri