When Comparing and Contrasting Between a Retrospective and Prospective Study

Multiple Choice

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.