Which best describes retrospective data?

Which best describes retrospective data?

• A. It is used to estimate costs of the present year
• B. It is used to estimate costs of the past year
• C. It is used to project costs for the next year
• D. It is not used for cost estimation

Answer: (A)

Retrospective data are historical records of what has already happened. They’re used to estimate current conditions by examining past costs and applying known changes (like inflation or shifts in utilization) to model what the costs look like now. That makes it most accurate to say they’re used to estimate costs for the present year, since you’re anchoring your current estimates on what occurred in the past. Forecasting next year typically relies on forward-looking methods and may blend prospective data, while retrospective data primarily describe past events; they are not about leaving cost estimation entirely out.

Retrospective data are historical records of what has already happened. They’re used to estimate current conditions by examining past costs and applying known changes (like inflation or shifts in utilization) to model what the costs look like now. That makes it most accurate to say they’re used to estimate costs for the present year, since you’re anchoring your current estimates on what occurred in the past. Forecasting next year typically relies on forward-looking methods and may blend prospective data, while retrospective data primarily describe past events; they are not about leaving cost estimation entirely out.