​In general, what is true about prospective and retrospective research studies?

A) ​Retrospective studies obtain stronger evidence.
B) ​Prospective studies obtain stronger evidence.
C) ​Both obtain a similar strength of evidence.
D) ​Both obtain matching but weak evidence.

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.