The Streetlight Effect in Quality Investigations
Why 8D teams keep finding root causes in the data they already have, and how to push investigations into the…
The Psychology of Quality
404 articles
Why More Inspection Makes Quality Worse: The Observer Problem in Quality Management
When you increase measurement intensity, you change operator and inspector behaviour — often in ways that degrade the very quality…
Survivorship Bias in Quality Management: Learning from the Failures You Ignored
Quality systems that study only their successes learn exactly the wrong lessons. A practical framework for finding the data your…
Systematic Blind Spots in Quality Management: How Organisations Avoid Uncomfortable Data
The most dangerous quality failures rarely come from missing data. They come from systems designed to filter, smooth, and bury…
False Consensus in Quality Management: How Group Agreement Creates Escaping Defects
Cross-functional teams routinely approve process changes that every member privately opposes. This social failure mode bypasses FMEA, SPC, and audit…
Overconfidence in Quality Management: How Unrecognised Incompetence Drives Defects
Confident decision-makers with shallow quality knowledge create systemic blind spots. Structured countermeasures can break the cycle before it corrupts your…
Quality Metrics and Ergodicity: Why Your Averages Conceal Customer Failures
Aggregate quality dashboards report system performance. Customers experience time averages. When these diverge, the data you trust hides the failures…
Decision Fatigue in Quality Systems: Designing for Finite Cognitive Capacity
Your inspectors make hundreds of conformity decisions per shift. Cognitive depletion degrades judgment long before the shift ends. Here is…
The Peak-End Rule in Quality Management: Why Memory Overrides Data
Organisations evaluate quality initiatives by their most dramatic moment and final act, not their actual performance. Here is how to…
Systems Thinking for Quality: Why Fixing Parts Without Understanding the Whole Fails
Most recurring quality failures are system failures. Mapping the feedback loops, delays, and archetypes that drive defects is the difference…