Question

Many parents in the “Vaccine Wars” episode of PBS’s Frontline that we watched in class argued that the MMR vaccine must have caused autism in their children because the symptoms of autism emerged shortly after exposure to the vaccine. These parents are making an argument for causality based on observed:

	A) Temporal relationship
	B) Specificity of association
	C) Consistency with other knowledge
	D) Biologic plausibility
	E) Strength of association

Answer 1

These parents are making an argument for causality based on observed are

A, temporal relationship.

It is timing between the factor and outcome that can be used to assigned the casuality to a relationship.

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