A nurse collects data about the productivity of staff members to evaluate a program. Which type of study is the nurse completing?

A. Cost-effectiveness study: Evaluates which interventions provide the best outcomes for the money spent - focuses on results, not staff productivity. B. Cost-efficiency study: Focuses on how well resources (e.g., staff time and productivity) are being used relative to cost. These best fits the scenario. C. Cost-accounting study: Breaks down the actual cost of services by category - not primarily concerned with productivity. D. Cost-benefit study: Compares the monetary value of benefits vs. costs - broader than staff productivity evaluation.