What type of study often results in problems related to using the past as a source of data?
A)Case-control study
B)Retrospective study
C)Prospective study
D)Before vs.after matched-pairs experiment

Question

Quizplus · Accepted Answer

A retrospective study involves looking back at past events, experiences or exposures. This type of study often results in problems related to using the past as a source of data because the subjects may have imperfect memory of past events, or may not have kept accurate records. This can lead to recall bias and misclassification of exposure or outcome.

What Type of Study Often Results in Problems Related to Using