Community-based or clinic-based interventions are based on the presumption that the associations found in epidemiological studies are causal rather than occurring by chance or through some bias.
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Q19: Case-control data must have existed before the
Q20: The web of causation can be defined
Q21: Prevalence is the length of time the
Q22: Selection bias is caused by enrolling only
Q23: A cross-sectional study design is when the
Q25: Coherence is the association between a proposed
Q26: Consistency of association is the ability to
Q27: A negatively accelerating dose-response relationship is where
Q28: Specificity of association is the requirement that
Q29: Because animal experiments allow for tight control
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