IB Extended Essay Criteria Explained

Understand all five EE assessment criteria, grade boundaries, and exactly how to target each one. From a student who scored 32/34.

Your Extended Essay is marked across five criteria totalling 34 marks. Understanding exactly what each criterion rewards — and how to target it — is the difference between hoping for an A and engineering one.

The Five Criteria at a Glance

  • Criterion A — Knowledge & Understanding (6 marks). Demonstrate genuine depth of understanding of your topic, RQ, terminology, and research methods.
  • Criterion B — Application & Analysis (6 marks). Apply research methods and present findings. Show tools working on your specific topic.
  • Criterion C — Synthesis & Evaluation (6 marks). Synthesise findings, maintain a clear argument, evaluate significance and limitations.
  • Criterion D — Communication (4 marks). Structure, formatting, citations, academic tone. The easiest marks — entirely within your control.
  • Criterion E — Engagement (RPPF) (6 marks). Show genuine engagement through your three RPPF reflections.

Grade Boundaries

GradeMark RangePercentage
A27–3479–100%
B22–2665–76%
C14–2141–62%
D7–1321–38%
E0–60–18%

27/34You need 79% for an A — very achievable

How to Target Each Criterion

  1. Criterion A: Introduction + Lit Review. Show deep understanding of your topic, not surface-level knowledge. Use specific terminology correctly.
  2. Criterion B: Methodology + Analysis. Explain WHY you chose each tool, then APPLY it with real data and evidence.
  3. Criterion C: Discussion + Conclusion. Evaluate findings honestly. Acknowledge limitations. Connect back to your literature review.
  4. Criterion D: Throughout. Academic tone, proper formatting, consistent citations, logical structure. Run the 15-minute checklist.
  5. Criterion E: RPPF. Three reflections showing challenge → attempt → learning → growth.

After writing each section, ask: "Which criterion am I targeting, and would an examiner see it clearly?" If the answer isn't obvious, rewrite until it is.

Key takeaways

  • Total: 34 marks across 5 criteria (27+ for an A)
  • Criterion D (4 marks) is the easiest — pure formatting and structure
  • Criterion E (6 marks) is the easiest high-value criterion — RPPF reflections
  • Map every section to criteria before you write
EE

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