This is the third video of our four-part Performance Improvement (PI) series moderated by Kristen Kosinski, Klaus Wittkuhn, and Roger Addison. We focused on Attribution Error and Human Performance. The session started with a short presentation addressing that there is a well-researched tendency of observers to assume personal traits of people as the cause of their behavior. Such assumptions overrate personal attributes and at the same time underrate situational factors when it comes to understanding human performance. Then we explored what factors influence human performance: Management Factors, Support Factors, Organizational Factors, and Personal Attribute Factors. It showed that personal attributes are only about 25% of the relevant factors. Understanding human performance first of all is understanding how human performance is driven by situational factors. We ended the session by addressing the question, "How do You Address Needs Assessments?" To learn more, please watch the video below and add comments and questions.