CQIA Continuous Improvement 5 — Questions and Answers
Question 1: Which statement BEST describes how continuous improvement differs from traditional quality inspection?
- Continuous improvement focuses on detecting defects after production; inspection prevents them
- Continuous improvement focuses on preventing defects and improving processes; inspection detects defects after the fact (Correct answer)
- Continuous improvement is only applicable to manufacturing; inspection applies everywhere
- Continuous improvement is more expensive than traditional inspection
Correct answer: Continuous improvement focuses on preventing defects and improving processes; inspection detects defects after the fact
Continuous improvement is proactive, targeting process improvement to prevent defects, whereas traditional inspection is reactive, finding defects after they occur.
Question 2: A process has been running in statistical control for three months. Management wants to reduce variation further. What is the MOST appropriate next step?
- Increase inspection frequency to catch more defects
- Investigate and change the process itself to address common causes (Correct answer)
- Adjust the control chart limits to allow less variation
- Wait for a special cause to appear before taking action
Correct answer: Investigate and change the process itself to address common causes
When a process is in statistical control, further variation reduction requires changing the process system (common cause variation), not reacting to individual data points.
Question 3: Which of the following is the BEST example of an 'improvement suggestion system' supporting continuous improvement culture?
- Annual employee performance reviews that include improvement ideas
- A formal system where employees regularly submit ideas that are reviewed and implemented quickly (Correct answer)
- A complaint box available only to customers
- Improvement ideas submitted only through union representatives
Correct answer: A formal system where employees regularly submit ideas that are reviewed and implemented quickly
Effective suggestion systems are accessible to all employees, provide timely feedback, and create a habit of continuous idea generation and implementation.
Question 4: A hospital wants to improve patient discharge speed. Using a value stream map, the team discovers that 40% of discharge time is spent waiting for physician signatures. This waiting time is an example of:
- Value-added time
- Necessary non-value-added time
- Pure waste that should be eliminated or reduced (Correct answer)
- Takt time
Correct answer: Pure waste that should be eliminated or reduced
Waiting for signatures adds no value to the patient and represents a waste of time that should be eliminated through process redesign or delegation.
Question 5: Which of the following BEST explains why management commitment is essential for successful continuous improvement programs?
- Managers are responsible for all process changes under ISO standards
- Management provides resources, removes barriers, and sets the cultural tone for improvement (Correct answer)
- Only managers have the technical skills to identify root causes
- Management commitment is required only for Six Sigma projects, not Kaizen
Correct answer: Management provides resources, removes barriers, and sets the cultural tone for improvement
Management commitment signals organizational priority, allocates resources, removes systemic barriers, and models the behaviors needed for a continuous improvement culture.
Question 6: A team tracking defect rates notices the data follows a non-normal distribution with many zero-defect days and occasional high-defect days. What type of variation does this MOST likely represent?
- Common cause variation only
- Special cause variation that needs investigation (Correct answer)
- Natural process variation that cannot be changed
- Measurement error requiring recalibration
Correct answer: Special cause variation that needs investigation
Rare high-defect days amid mostly zero-defect performance suggest special causes — assignable events that deviate from the normal process and warrant investigation.
Question 7: What is the purpose of a 'lessons learned' review at the end of a continuous improvement project?
- To assign blame for any project failures or delays
- To capture knowledge that can be applied to future improvement projects (Correct answer)
- To determine whether to continue the PDCA cycle
- To report compliance with the project charter to auditors
Correct answer: To capture knowledge that can be applied to future improvement projects
Lessons learned sessions capture successful practices and pitfalls from a completed project so the organization can replicate successes and avoid repeating mistakes.
CQIA Continuous Improvement 5
Which statement BEST describes how continuous improvement differs from traditional quality inspection?