What would happen to the same people simultaneously exposed and not exposed to the casual factor in an idealized research model?

Question

Quizplus · Accepted Answer

The concept of comparing the same group of people as if they were simultaneously exposed and not exposed to a causal factor is referred to as the "counterfactual" scenario. It's a hypothetical or idealized model used in causal inference to understand what would have happened to the same individuals in the absence of the exposure or intervention.

What Would Happen to the Same People Simultaneously Exposed and Not