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13-03-2020
Biology

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Rank the following epidemiologic study designs in order from increasing to decreasing validity (1 being highest validity and 4 being lowest validity): a. Cross-sectional studies b. Cohort studies c. Randomized Controlled Trials (RCTs) d. Case-control studies

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braydendixon2005 braydendixon2005

13-03-2020

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