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10 cards from this deck
Relationship where changes in one variable are associated with changes in another variable
Direct relationship where one variable is proven to cause changes in another variable
Whether the relationship appears reliably across different studies and populations
Proposed cause must occur before the observed effect
Biological processes explaining how one variable causes changes in another
Testing if removing the proposed cause reduces the observed effect
Chemical compounds that mutate DNA in cells, leading to cancer
When variables appear related due to coincidence or an unmeasured third factor
Studies following same individuals over extended periods
Compare disease rates across populations with varying exposure
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