Introduction
The Internal Assessment (IA) is not just about collecting data or gathering sources — it’s about what you do with them. Examiners reward students who go beyond description and demonstrate critical thinking in their analysis. Critical thinking shows that you can evaluate evidence, recognize limitations, and reflect on broader implications. Without it, even a well-structured IA risks scoring in the middle bands.
In this guide, we’ll explore how to apply critical thinking in your IA analysis. We’ll cover strategies for sciences, humanities, and math, plus examples of how to integrate evaluation naturally. To see models of critical analysis in action, review RevisionDojo’s coursework exemplars.
Quick Start Checklist: Critical Thinking in an IA
- Go beyond description — explain why results or evidence matter
- Evaluate the reliability of methods, sources, or data
- Consider alternative perspectives or interpretations
- Recognize limitations honestly
- Reflect on broader significance and real-world connections
Step 1: Move Beyond Description
Many IAs lose marks because they simply describe what happened. Critical thinking requires explanation and interpretation.
Example (Biology IA):
- Descriptive: “The plants grew taller in sunlight than in shade.”
- Critical: “The increased growth in sunlight suggests that photosynthesis was more efficient, supporting the hypothesis. However, variation between trials indicates possible uncontrolled factors, such as soil quality.”
Critical analysis always answers the question: So what?
Step 2: Evaluate Reliability
Critical thinking means asking whether your data or sources are reliable.
- Were measurements precise? Were errors random or systematic?
