Human Factors: Error Types, Performance-Shaping Factors and Design for People
ASP written lesson, 6 min read. ASP Domain 8: Training, Education, and Communication
Written with AI help from the rules it covers, then fact-checked against them. Study aid, not site-specific safety advice. The official rule controls.
What you'll learn
- Distinguish slips, mistakes and violations, and active from latent errors
- Use the PEAR model to analyze a task
- Recognize the Dirty Dozen precursors to error
- Explain how fatigue, workload and stress degrade performance
- Choose design controls over blame
What this lesson covers
This lesson covers human factors for the safety professional: error types (slips, mistakes, violations), active and latent errors, the PEAR model, the Dirty Dozen, fatigue, situation awareness and risk perception. The goal is to design work so normal human limits don't turn into incidents.
This lesson is included with a pass
Written lessons come with every ASP pass, along with the video lessons, the question bank, mocks and the tutor. $80 per exam for 6 months, or $143 for all three for 12 months.
Try the free human factors and performance practice questions