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The conclusion is the final part of your Extended Essay and the moment where you directly and confidently answer your Research Question.
It is not a summary of the essay and it is not the place to introduce new evidence.
🖖 Ask Yourself: “If the examiner only read my conclusion, would they understand the full argument and its significance?”
1. Directly answer the Research Question
This is the single most important element.
A high scoring conclusion does not:
repeat the question
hint at the answer
summarise the essay
It clearly states the answer in one or two precise sentences.
Example:
Overall, the evidence shows that…
The research demonstrates that…
2. Justify your answer using the strongest evidence
Briefly show why your answer is well supported.
This is not new analysis.
You simply bring together the key insights that make your answer convincing.
Examples:
This conclusion is supported by the consistency of…
The most compelling evidence is provided by…
3. Acknowledge limitations
Every investigation has limits.
You may consider:
sample size
case study narrowness
lack of available data
methodological constraints
theoretical limits
This shows maturity and earns marks in Criterion D.
But do not apologise for your research.
You acknowledge limits without undermining your work.
Example:
Although the investigation is limited by…, the evidence is still sufficient to…
4. Explain the significance of your findings
This is a requirement in the 2027 guide.
Significance might include:
contribution to understanding a text
implications for a theory
relevance to a real world issue
insight into a cultural, political or scientific question
Example:
These findings contribute to a broader understanding of…
5. Avoid all new evidence
If it was not analysed earlier in the essay, it cannot appear in the conclusion.
No new quotations, no new data, no new examples.
introduce new evidence
re-tell the essay
list every point again
change the Research Question
make claims not supported in the body
include emotional or persuasive language
1. Answer the Research Question
Provide a clear, evidence-based answer.
2. Comment on the quality of the answer
Explain how strong it is and acknowledge limitations.
3. State the significance
Explain why your findings matter.
That is all the IB requires: Short, focused, academic.
Answering the question
The investigation shows that…
The evidence strongly suggests that…
This essay concludes that…
Commenting on strength and limitations
This answer is supported by…
The argument is limited by…
Despite these limitations, the findings remain reliable because…
Explaining significance
This conclusion is significant because…
These findings contribute to a deeper understanding of…
This has broader implications for…
Example: Global Politics
This investigation concludes that framing strategies had a measurable influence on public support for immigration policy. This is supported by the consistency between linguistic choices in political speeches and shifts in opinion poll data. Although the study is limited to two parties and one national context, the evidence remains strong enough to show that political framing shapes how citizens interpret policy debates. This finding contributes to broader discussions about democratic communication and political persuasion.
Example: Biology
The results show that increasing light intensity raises the rate of oxygen production in Elodea canadensis up to a clear saturation point. This conclusion is supported by the consistency of measurements across trials. Although the apparatus limited the precision of the data, the overall trend remains reliable. These findings highlight the importance of light availability in regulating photosynthesis and reinforce established principles in plant physiology.