AEP Quality Assurance and Improvement 3 — Questions and Answers
Question 1: In ergonomics program evaluation, which metric best reflects the effectiveness of an ergonomic intervention in reducing musculoskeletal disorder risk?
- Number of ergonomic assessments completed
- Pre- and post-intervention RULA/REBA score reduction (Correct answer)
- Total training hours delivered
- Number of new workstation furniture purchases
Correct answer: Pre- and post-intervention RULA/REBA score reduction
Comparing validated ergonomic risk scores before and after an intervention directly measures whether physical risk was reduced.
Question 2: A quality audit of an ergonomics program reveals that corrective actions are frequently not completed on time. The BEST systemic fix is to:
- Increase the number of ergonomic assessments
- Implement a tracking system with assigned owners and deadlines (Correct answer)
- Reduce the number of corrective actions generated
- Outsource ergonomic assessments to a third party
Correct answer: Implement a tracking system with assigned owners and deadlines
A formal tracking system with accountability ensures corrective actions are completed, addressing the root cause of the systemic failure.
Question 3: Which DMAIC phase in Six Sigma involves identifying the key process variables that most influence ergonomic outcomes?
- Define
- Measure
- Analyze (Correct answer)
- Improve
Correct answer: Analyze
The Analyze phase uses statistical and graphical tools to identify root causes and the key variables driving the problem.
Question 4: Benchmarking in an ergonomics quality program primarily involves:
- Setting upper and lower control limits on a chart
- Comparing program metrics against industry best practices or peer organizations (Correct answer)
- Measuring workstation dimensions against anthropometric tables
- Calculating the cost-benefit ratio of ergonomic controls
Correct answer: Comparing program metrics against industry best practices or peer organizations
Benchmarking compares your program's performance against external standards or high-performing peers to identify improvement opportunities.
Question 5: Which of the following represents a SMART goal for an ergonomics quality improvement initiative?
- Improve workplace safety
- Reduce MSD-related lost workdays by 20% within 12 months (Correct answer)
- Increase ergonomic awareness among employees
- Conduct more ergonomic assessments next year
Correct answer: Reduce MSD-related lost workdays by 20% within 12 months
A SMART goal is Specific, Measurable, Achievable, Relevant, and Time-bound — a 20% reduction in 12 months meets all criteria.
Question 6: During an ergonomics program review, you find that injury rates have declined but worker satisfaction with workstations has also declined. This suggests:
- The program is fully successful and requires no changes
- Lagging indicators improved while leading indicators may be signaling future problems (Correct answer)
- Injury data is unreliable and should be discarded
- Worker satisfaction is not relevant to ergonomics quality
Correct answer: Lagging indicators improved while leading indicators may be signaling future problems
Declining satisfaction despite lower injury rates may signal emerging issues not yet reflected in injury data, indicating the need for further investigation.
Question 7: A Pareto chart in an ergonomics quality improvement effort is MOST useful for:
- Tracking a single metric over time
- Identifying the vital few causes responsible for most ergonomic problems (Correct answer)
- Displaying the distribution of force measurements
- Correlating two ergonomic variables
Correct answer: Identifying the vital few causes responsible for most ergonomic problems
Pareto charts apply the 80/20 rule, showing which few causes account for the majority of problems so teams can prioritize interventions.
AEP Quality Assurance and Improvement 3
In ergonomics program evaluation, which metric best reflects the effectiveness of an ergonomic intervention in reducing musculoskeletal disorder risk?