AEP Quality Assurance and Improvement 2

Question 1

Which statistical tool is used in ergonomics QA to determine whether a process is operating within acceptable control limits over time?

Accepted Answer

Control chart (SPC)

Answer

Statistical Process Control (SPC) uses control charts to monitor process performance and detect variation that signals an out-of-control condition.

Question 2

In a Plan-Do-Check-Act (PDCA) cycle applied to an ergonomics program, which phase involves analyzing data collected from an ergonomic intervention?

Accepted Answer

Check

Answer

The Check phase of PDCA involves evaluating the results of the intervention against the goals established in the Plan phase.

Question 3

A process capability index (Cpk) of less than 1.0 in an ergonomics measurement process indicates:

Accepted Answer

The process cannot consistently meet specification limits

Answer

A Cpk below 1.0 means the process produces output outside specification limits, indicating the measurement process is not capable.

Question 4

Which quality improvement approach focuses on reducing defects to 3.4 per million opportunities and is sometimes applied to ergonomics programs?

Accepted Answer

Six Sigma

Answer

Six Sigma targets 3.4 defects per million opportunities using DMAIC methodology to drive process improvement.

Question 5

When conducting a root cause analysis for a repetitive strain injury cluster, which tool helps teams visualize cause-and-effect relationships?

Accepted Answer

Fishbone (Ishikawa) diagram

Answer

The Ishikawa (fishbone) diagram organizes potential causes into categories to identify root causes of a problem or injury trend.

(AEP) Associate Ergonomics Professional Practice Test