Which fallacy occurs when personal experience is presented as universal proof of a theory?

The correct choice identifies a specific type of reasoning error where an individual's personal experience is incorrectly extrapolated to represent a universal truth. This fallacy undermines the validity of claims by relying solely on anecdotal evidence without considering other evidence or broader context.

In this instance, when someone uses their individual experiences to assert that a theory is universally applicable, they fall into the trap of assuming that what is true in their case must be true for everyone else, thus failing to account for variations and exceptions that might exist. This type of reasoning can lead to oversimplified conclusions about complex issues, lacking the rigor required for robust argumentation.

Understanding this fallacy is crucial, as it highlights the importance of evidence-based reasoning and the need to support theories with comprehensive data rather than isolated experiences.