Certified Safety Professional Exam 2025 – 400 Free Practice Questions to Pass the Exam

The Domino Theory, which is pivotal to understanding accident causation, was developed by H.W. Heinrich. This theory proposes that accidents are the result of a sequence of events, much like the falling of dominoes. Heinrich suggested that an accident does not occur randomly but is often the result of a combination of factors, including the actions of individuals and unsafe conditions.

Heinrich's model positions the worker as the critical link in the chain of events leading to an accident and emphasizes the importance of identifying and correcting unsafe behaviors and conditions to prevent future incidents. By understanding this chain of events, safety professionals can implement effective measures to disrupt the chain and prevent accidents from occurring.

The other figures mentioned, while influential in their respective fields, do not specifically relate to the development of the Domino Theory. Frank S. Wood focused on safety management strategies, Peter Drucker is well-known for his contributions to management theory, and W. Edwards Deming is associated with quality control and management practices, not accident theory. Therefore, Heinrich's contribution remains central in the field of occupational safety and health.