Epidemiology
I am working on a report for epidemiology, and have a question in regards to Cross-secional studies..
Why are cross-sectional studies not usually used to test hypotheses, and under which circumstance could a cross-sectional study be used to test a hypothesis?
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A cross sectional study measures the prevalence of health outcomes or determinants of health, or both, in a population at a point in time or over a short period. Such information can be used to explore aetiology for example, the relation between cataract and vitamin status has been ...
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I am working on a report for epidemiology, and have a question in regards to Cross-secional studies..
Why are cross-sectional studies not usually used to test hypotheses, and under which circumstance could a cross-sectional study be used to test a hypothesis?