1. Multiple Choice: Which model of quality improvement focuses on the systematic elimination of waste and inefficiency? a) Six Sigma b) Lean methodology c) Total Quality Management d) Continuous Quality Improvement Correct Answer: b) Lean methodology Rationale: Lean methodology is centered around the elimination of waste within a system, which aligns with the principles of quality improvement in healthcare. 2. True/False: The Plan-Do-Study-Act (PDSA) cycle is a one-time process used for quality improvement. Answer: False Rationale: The PDSA cycle is a repetitive four-step management method used in business for the control and continuous improvement of processes and products.