When comparing and contrasting between a retrospective and prospective study, which of the following is a TRUE statement?
A) Prospective studies are generally less expensive than retrospective methodologies.
B) There is more chance for the introduction of bias in the data gathering for prospective studies.
C) Prospective studies have greater validity than retrospective studies.
D) Retrospective studies use a research form or instrument specifically designed for the study.

Question

Quizplus · Accepted Answer

Prospective studies have greater validity than retrospective studies because they allow researchers to control for confounding variables and follow subjects over time, which reduces the risk of recall bias. However, prospective studies are generally more expensive and time-consuming than retrospective methodologies, and there is still a risk of bias in data gathering. Retrospective studies also often use existing data sources or medical records, rather than a research form or instrument specifically designed for the study.

When Comparing and Contrasting Between a Retrospective and Prospective Study