What is the IB Extended Essay?
The IB Extended Essay is a 4,000-word independent research paper required for the IB Diploma. It is assessed externally by the IB on criteria including Focus and Method, Knowledge and Understanding, Critical Thinking, Presentation, and Engagement. An E grade (the lowest) results in automatic diploma failure regardless of other scores.
The Extended Essay (EE) is one of the most misunderstood components of the IB Diploma. Students often treat it as a long essay, which leads to predictable failures: an unfocused research question, no genuine engagement with sources, surface-level analysis, and a final product that scores in the C or D range. This guide addresses the Extended Essay with the precision the assessment demands, covering every major criterion, the research question development process, the supervisor relationship, the RPPF, and the specific patterns that produce D and E grades.
The Stakes: Why the EE Matters
The Extended Essay is worth 3 of the 45 points available in the IB Diploma, combined with Theory of Knowledge (ToK) in a matrix that awards 0-3 bonus points. An A on both EE and ToK earns 3 bonus points; a C on both earns 1; an E on either results in automatic diploma failure, regardless of how you perform in your six subjects.
| EE Grade | ToK Grade | Bonus Points |
|---|---|---|
| A | A | 3 |
| A | B or B | A |
| B | B | 2 |
| A/B | C or C | A/B |
| C | C | 1 |
| D | Any | 0 |
| E | Any | 0 + diploma failure |
| Any | E | 0 + diploma failure |
The E grade is functionally rare but devastating when it occurs. Understanding what produces D and E grades and actively avoiding those patterns is as important as understanding what produces A and B grades.
Subject Choices and Their Implications
The EE can be written in any IB subject, but not all subjects are equally hospitable to strong EEs. Subject choice affects the type of research question you can ask, the type of evidence available, and the assessment approach you will use.
Sciences (Biology, Chemistry, Physics, Environmental Systems and Societies): Science EEs require a genuine research component — original data collection or rigorous secondary source analysis. Pure literature reviews are not acceptable in sciences. Laboratory-based EEs allow for original data but require substantial equipment access and rigorous methodology documentation. The research question must be specific and testable.
Social sciences (History, Geography, Economics, Psychology): These subjects support strong document-based and data analysis EEs. History EEs must address a historical question with specific evidence; "causes of World War II" is not a viable research question because it is too broad and too widely covered. "To what extent did the Molotov-Ribbentrop Pact alter Soviet strategic interests in Eastern Europe, 1939-1941?" is viable.
Language A (Literature, Language and Literature): Literary analysis EEs work well for strong close readers. The research question must be specific to the text(s) being analyzed and must require genuine literary analysis rather than biographical or historical summary.
Mathematics: Math EEs are among the hardest to score highly on because they require genuine mathematical exploration with original reasoning or proof work. They are not well-suited to students who want to summarize existing mathematical knowledge.
Common mistake: Choosing a subject because you like it rather than because you have access to research materials, a viable research question, and a knowledgeable supervisor. A student who loves physics but attends a school with no laboratory access will struggle to write a high-scoring physics EE.
The Research Question: The Most Critical Step
The research question (RQ) is the single most important decision in the entire Extended Essay process. A bad research question cannot be saved by excellent writing, thorough research, or strong analysis. A weak RQ produces a weak EE structurally, because the entire assessment depends on your ability to answer it rigorously within 4,000 words.
Characteristics of a Strong Research Question
Focused: The question addresses a specific, bounded topic. "How does media affect teenagers?" is not focused. "To what extent does daily social media use above two hours predict symptoms of social comparison anxiety in adolescent females aged 14-17?" is focused (even if the study's scope is limited).
Arguable: The question must have a genuine, defensible answer that requires analysis and evidence — not just description or research. Questions with yes/no answers tend to produce thin analysis. Questions that begin with "To what extent..." or "How effective..." or "In what ways..." tend to produce richer engagement.
Researchable: You must be able to access adequate sources to answer the question. A question that requires classified government documents, expensive databases, or interviews that cannot be arranged is not viable regardless of its intellectual merit.
Original: Not original in the sense of new to the world, but original in the sense that you are doing the analysis, not reproducing existing analysis. A RQ whose answer is found in a single textbook chapter has no room for genuine intellectual contribution.
"The research question is the spine of the Extended Essay. Everything else — the sources, the methodology, the analysis, the conclusion — must connect to it. Supervisors who allow students to proceed with weak or vague research questions are setting them up for disappointing grades." — IB Extended Essay Assessment Criteria Notes, 2023
Research Question Development Process
Students often arrive at their final research question through multiple iterations. This is normal and expected. The RPPF (Reflections on Planning and Progress Form) specifically asks you to reflect on how your thinking developed — which means the IB expects the process to involve revision.
A practical development process:
- Choose a broad topic area (e.g., renewable energy policy in Germany)
- Read broadly to identify the specific debates, questions, or knowledge gaps in that area
- Draft a preliminary research question that is too broad
- Narrow it: add a specific time frame, geography, comparison point, or analytical focus
- Test it: Can I answer this in 4,000 words? Can I find at least 8-10 credible sources? Is there genuine room for analysis rather than just description?
- Discuss with your supervisor and revise
The Supervisor Relationship
Your supervisor is a teacher at your school who guides you through the EE process. They cannot write any part of the essay for you, but they can (and should) provide feedback on your research question, methodology, argument structure, and evidence use.
You are entitled to up to 3 hours of supervisor contact time throughout the EE process. This is less than most students expect and requires strategic use.
Most valuable supervisor interactions:
- Early: Review your research question and assess whether it is viable
- Mid-process: Review your outline and argument structure before you have written the full draft
- Late: Review a complete draft and provide holistic feedback before you finalize
What your supervisor should NOT be doing: Writing sentences for you, substantially editing your prose for style, or selecting your sources. If your supervisor is doing these things, it is a breach of IB academic integrity policy and puts your diploma at risk.
The RPPF: Reflections on Planning and Progress Form
The Reflections on Planning and Progress Form (RPPF) is a mandatory component of the Extended Essay, submitted alongside the essay itself and assessed as part of the Engagement criterion (Criterion E). It records three supervisor-student reflection sessions: an initial reflection, a mid-process reflection, and the final reflection (written before the viva voce).
Each reflection entry should be approximately 100-150 words and should document:
- What you were thinking or planning at this stage
- What challenges or questions arose
- How your thinking or approach changed as a result of your research
Common mistakes on the RPPF:
- Writing only a brief summary of what you did rather than genuine reflection on the intellectual process
- All three entries saying essentially the same thing
- The third entry (written before the viva voce) failing to address how your thinking evolved from beginning to end
The RPPF is not an afterthought — it is assessed and contributes to your final grade. Students who neglect it until the last week consistently lose points on Criterion E that they cannot recover.
The Viva Voce
The viva voce is a short (10-15 minute) oral conversation between you and your supervisor that takes place after you have submitted your final essay. It is not assessed directly — it is a confirmation that the essay is your own work and provides context for the supervisor's overall assessment of your engagement with the process.
The viva voce typically covers:
- What you found most interesting or challenging about the research
- What you would do differently if you were to repeat the process
- How your conclusions connect to the broader field or have implications you did not address in the essay
There is no way to "fail" the viva voce. But approaching it without having genuinely engaged in the EE process — if someone else wrote substantial portions of the essay, for instance — is where academic integrity issues typically surface.
Assessment Criteria
The Extended Essay is scored on five criteria, collectively worth 34 points, which are then converted to a grade A-E.
| Criterion | Points | What It Assesses |
|---|---|---|
| A: Focus and Method | 6 | Clarity and appropriateness of the topic, RQ, and methodology |
| B: Knowledge and Understanding | 6 | Understanding of the topic, relevant concepts, and sources |
| C: Critical Thinking | 12 | Quality of analysis, discussion, evaluation, and argument |
| D: Presentation | 4 | Structure, layout, bibliography, word count compliance |
| E: Engagement | 6 | Quality of intellectual engagement reflected in RPPF |
Critical Thinking (Criterion C) is worth 12 of the 34 points — more than any other single criterion. Students who treat the EE as primarily a research compilation rather than a critical analysis fail to invest effort where the most marks are available.
"The Extended Essay is fundamentally an exercise in disciplined intellectual inquiry. Students who receive high marks are those who genuinely grapple with a question, follow the evidence where it leads, and produce a conclusion that emerges from the analysis rather than preceding it." — IB Examiner Report, Extended Essay, 2023
Grade Boundaries
| Grade | Point Range | Meaning |
|---|---|---|
| A | 28-34 | Excellent |
| B | 21-27 | Good |
| C | 14-20 | Satisfactory |
| D | 7-13 | Mediocre |
| E | 0-6 | Elementary (diploma failure) |
Common Reasons for D and E Grades
Research question too broad: A RQ that cannot be answered rigorously in 4,000 words produces a superficial essay that touches on many things without developing any of them. The analysis section is thin, the conclusion is unsupported, and Criterion C scores poorly.
No genuine methodology: Sciences and social sciences require explicit methodology documentation. An essay that presents findings without explaining how data was collected, analyzed, or interpreted cannot score highly on Criterion A.
Sources as decoration: Citing sources without genuinely engaging with them — mentioning a scholar's name without engaging with their argument — produces thin Knowledge and Understanding scores. Evidence should be quoted, explained, and analyzed, not merely cited.
Word count non-compliance: The word count is strictly enforced at 4,000 words. Material beyond 4,000 words is not read by the examiner. Students who write 5,000 words have lost whatever argument appears in words 4,001-5,000. Criterion D (Presentation) is also affected.
Conclusion that does not follow from the evidence: A conclusion that states a strong position unsupported by the analysis preceding it scores poorly on Criterion C. The conclusion should address the research question directly, acknowledge limitations in the evidence or analysis, and avoid overclaiming.
Timeline for Year 12
| Timeline Point | Milestone |
|---|---|
| Weeks 1-3 | Subject choice; preliminary research; draft research questions |
| Weeks 4-6 | RQ finalized with supervisor approval; first RPPF entry |
| Weeks 7-12 | Primary source collection; reading and annotation |
| Weeks 13-16 | Outline; first draft of analysis sections |
| Weeks 17-20 | Complete draft; second RPPF entry; supervisor feedback |
| Weeks 21-24 | Revision; completion of final draft |
| Week 25 | Third RPPF entry; viva voce; submission |
Citation and Bibliography Standards
The Extended Essay must include a bibliography and in-text citations using a consistent referencing style. The IB does not mandate a specific citation style — MLA, APA, Chicago, and other consistent systems are all acceptable. What matters is consistency: using one system throughout the essay without mixing conventions.
Common citation errors that affect Criterion D (Presentation):
- Inconsistent citation format (some citations in APA style, some in MLA style)
- In-text citations without corresponding bibliography entries
- Bibliography entries without corresponding in-text citations
- Incorrect formatting for online sources (missing access dates, URLs without retrieval context)
The 4,000-word limit does not include the bibliography, abstract, table of contents, or appendices. These sections do not count toward the word count but must be present for a complete submission.
Writing Quality and Criterion C
Criterion C (Critical Thinking) is worth 12 of the 34 marks and includes evaluation, analysis, and argument. Students frequently focus on research volume (how many sources they found) rather than analytical depth (what they do with the sources). A bibliography of 30 sources used superficially scores lower on Criterion C than 10 sources engaged with critically.
What critical thinking looks like in the EE:
- Evaluating the reliability and relevance of sources explicitly, not just citing them
- Acknowledging when evidence is inconclusive or contradictory, rather than selectively using only supporting evidence
- Discussing limitations of the methodology or data used
- Connecting findings to the broader context of the field
- Drawing conclusions that are defensible given the evidence — neither overclaiming nor underclaiming
Students who write "According to Smith (2019), X is true" have cited a source. Students who write "Smith (2019) argues X, though this finding has been contested by Jones (2021) on the grounds that Y, which suggests that Z may be a more accurate characterization" have engaged critically with sources. The latter approach is what earns marks in Criterion C.
Academic Integrity and the EE
IB academic integrity policy applies to the Extended Essay as rigorously as to any other assessment. The RPPF and viva voce exist partly to confirm that the essay is the student's own work. Submissions that contain substantial text from external sources without proper citation, that have been written by someone other than the student, or that are substantially similar to previous EEs (possible if topics are identical and previous essays are accessible) are subject to IB investigation.
The use of AI text generation tools in the Extended Essay raises specific concerns under IB policy. The IB's 2023 policy statement makes clear that submitting AI-generated text as one's own academic work constitutes academic misconduct. Students must ensure that any use of AI tools (for research assistance, brainstorming, or grammar checking) does not result in the submission of text that was not written by the student.
References
- International Baccalaureate Organization. (2023). Extended Essay Guide. IBO. https://www.ibo.org/programmes/diploma-programme/curriculum/extended-essay/
- International Baccalaureate Organization. (2023). Extended Essay Assessment Criteria. IBO. https://www.ibo.org/programmes/diploma-programme/curriculum/extended-essay/assessment/
- Lerner, N. (2009). The Unpromising Future of Writing Centers. In B. Speck & S. Gravett (Eds.), A Companion to the Disciplines of Writing. Wiley-Blackwell.
- IB Examiner. (2023). Extended Essay Examiner Reports. International Baccalaureate Organization. https://resources.ibo.org
- Koltay, T. (2011). The media and the literacies: Media literacy, information literacy, digital literacy. Media, Culture and Society, 33(2), 211-221. https://doi.org/10.1177/0163443710393382
- International Baccalaureate Organization. (2022). Theory of Knowledge Guide. IBO. https://www.ibo.org/programmes/diploma-programme/curriculum/theory-of-knowledge/
- Marzano, R. J., & Kendall, J. S. (2007). The New Taxonomy of Educational Objectives (2nd ed.). Corwin Press.
- International Baccalaureate Organization. (2023). Academic Integrity Policy. IBO. https://www.ibo.org/programmes/diploma-programme/what-is-the-dp/academic-integrity/