Prospective studies are completed quickly since you only have to ask people to project what they would do or how they will act in the future.

Question

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Prospective studies are not completed quickly since they involve following individuals over time to observe their actual behavior or outcomes, which can take a significant amount of time. Asking people to project their future behavior is part of a cross-sectional study design, which does not capture actual behavior over time.

Prospective Studies Are Completed Quickly Since You Only Have to Ask