Which of the following statements is/are true about case-control designs?
A) They are rarely feasible.
B) Data must be collected at multiple points in time.
C) Retrospective data are collected about past differences that might explain differences in outcome.
D) We can usually be highly confident about their internal and external validity.
E) We can usually be highly confident about the direction of causal influence.

Question

Which of the following statements is/are true about case-control designs?​
A) ​They are rarely feasible.
B) Data must be collected at multiple points in time.​
C) Retrospective data are collected about past differences that might explain differences in outcome.​
D) We can usually be highly confident about their internal and external validity.​
E) ​We can usually be highly confident about the direction of causal influence.

Quizplus · Accepted Answer

Case-control designs involve retrospective data collection about past differences that might explain differences in outcome. Options A, B, D, and E are incorrect because case-control designs can be feasible, do not require data collection at multiple points in time, and may be subject to limitations in internal and external validity and the identification of causal influence.

Which of the Following Statements Is/are True About Case-Control Designs?​

Which of the Following Statements Is/are True About Case-Control Designs?