IB Theory of Knowledge (TOK) Exhibition 2026 May Solution & Worked Answer

An Investigation into the Criteria for Good Evidence and the Role of Interpretation Across Diverse Contexts

Solution Overview

This exhibition explores the fundamental question: "What counts as good evidence for a claim?" Through the analysis of three distinct objects—a scientific lab report, forensic physical evidence, and digital video footage—the work examines how evidence functions across different Areas of Knowledge.

The argument posits that while quantitative data and scientific methodology provide reliability through falsifiability, the validity of evidence is often subject to human interpretation, context, and bias. The analysis demonstrates that physical and digital evidence can gain or lose credibility based on how they are presented and perceived. This exemplar is valuable for its nuanced exploration of the tension between objective data and subjective interpretation in establishing truth.

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