HOSA Epidemiology Assessment Practice Test

Question: 1 / 400

In which type of study is the population assessed at a single point in time?

Longitudinal study

Case-control study

Cross-sectional study

A cross-sectional study is characterized by assessing a population at a single point in time. This type of study provides a snapshot view of the population concerning particular variables or outcomes and helps researchers understand the prevalence of certain characteristics, diseases, or behaviors within that population at that specific moment.

Cross-sectional studies are valuable in identifying associations and forms the basis for further hypothesis generation, though they don't provide information on causation or changes over time. In contrast, longitudinal studies involve repeated observations of the same variables over extended periods, case-control studies compare individuals with a specific condition to those without, and cohort studies follow a group over time to observe outcomes.

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Cohort study

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