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Explain the purpose of a z-score and how it is calculated.
Prospective Studies
Research studies that follow participants over time to observe outcomes, such as the development of diseases, based on earlier exposures or risk factors.
Retrospective Studies
Research studies that analyze past data to assess outcomes and factors affecting them.
Evidence
Information or facts that help to establish the truth or validity of a belief, proposition, or phenomenon.
Longitudinal Design
A research design that involves repeated observations of the same variables or groups over a period of time, allowing for the study of changes and development.
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