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In the laboratory,how could you distinguish between normal hemoglobin A and hemoglobin S?
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.
Prospective Design
A research design that follows participants forward over a period of time to observe future outcomes.
Cross-sectional Design
A research design that analyzes data from a population, or a representative subset, at a specific point in time to examine relationships between variables.
Observational Study
A research method involving the collection of data without interference with the subjects’ natural environment.
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