What makes IB extended response questions different

Extended response questions appear across IB subjects — History Paper 2 essays, Economics HL data response evaluation sections, Biology HL Paper 3 essay questions, Psychology Paper 1 essays, and more. They typically carry between 8 and 22 marks and are assessed using markbands rather than point-marking.

The fundamental difference from GCSE or A-Level extended writing is this: IB examiners are not looking for you to cover a checklist of points. They are judging the quality of your thinking — your ability to construct a reasoned argument, support it with specific evidence, and evaluate it critically. Two students who write about completely different aspects of a question can both receive top marks, provided both argue well.

Before you write — the 3-minute plan

Never start writing an IB extended response without a plan. Under time pressure, students who skip planning typically write a brain-dump: everything they know about the topic, in the order it occurs to them, with no clear argument. This produces a mid-band answer regardless of knowledge level.

Spend 2–3 minutes on this before writing a word:

  1. Identify the command term — the IB uses specific command terms with precise meanings: Discuss (present balanced arguments); Evaluate (make a judgment based on evidence); Examine (consider in detail); To what extent (requires a qualified judgment). Your answer must respond to the command term, not just the topic.
  2. Form a position — decide what your answer will argue before you start. An IB extended response needs a line of argument, not just information. "This essay will explore…" is not a position. "To a significant but qualified extent, X was the main cause of Y because…" is.
  3. Select 2–3 arguments — choose the arguments that best support your position and that you can develop with specific evidence. Two well-developed arguments beat five superficial ones.

The structure that reaches the top band

1

Introduction — state your position directly

Open with your argument, not a definition or a list of what you will cover. State the extent to which you agree (if it is a "to what extent" question), name the factors you will argue are most significant, and briefly signal why. 3–5 sentences maximum.

2

Body paragraphs — argue, evidence, evaluate

Each paragraph should: make one clear argument; support it with specific, accurate evidence (dates, names, data, examples — not vague generalities); then evaluate it (consider its significance, its limitations, or how it interacts with other arguments). Do not save evaluation for the conclusion.

3

Counterargument — acknowledge and engage

At least one paragraph should address the strongest argument against your position. Do not simply list it and dismiss it — engage with it seriously, then explain why your overall argument still holds. This is what examiners mean by "balanced" at the top band.

4

Conclusion — synthesise, do not repeat

State your final, qualified judgement. Do not summarise what you have already said — synthesise it. What does the weight of your evidence and evaluation add up to? A strong conclusion adds something the body paragraphs did not explicitly state.

The evaluation mistake that costs the most marks

The most common reason students plateau at 6–7 rather than reaching 8–9 is evaluation by afterthought — treating evaluation as something you do at the end, separately from your analysis. Compare these two approaches to the same argument:

Evaluation by afterthought (6–7 range)

"The Wall Street Crash of 1929 contributed to Hitler's rise to power. Germany experienced mass unemployment and economic hardship. This made people turn to extreme political parties. [New paragraph] However, some historians argue that the Depression was not the only factor..."

Integrated evaluation (8–9 range)

"The Wall Street Crash accelerated rather than initiated Nazi support — Hitler had already received 2.6% of the vote in 1928, before the Depression struck. This suggests the economic crisis provided an opportunity for pre-existing extremism rather than creating it, which limits how far economic determinism alone can explain the Nazi rise."

The second version makes the same argument but interrogates it immediately, assigning it a precise significance and acknowledging what it cannot explain. This is what top-band evaluation looks like.

Using evidence effectively

IB examiners reward specific evidence over general statements. The difference:

  • Vague: "Germany suffered economic problems after the Wall Street Crash."
  • Specific: "German unemployment reached 6.1 million by January 1932, roughly 30% of the workforce."

You do not need to remember precise statistics for every point — named examples, case studies, specific dates, and named individuals all count as specific evidence. What marks down an answer is relying entirely on vague generalities: "many people," "significant events," "various factors."

Command term quick reference

  • Discuss — present and evaluate multiple perspectives; do not just list them.
  • Evaluate / To what extent — reach a reasoned, qualified judgement; sitting on the fence scores middle band.
  • Examine — consider in detail; go beyond description into explanation.
  • Analyse — break the topic into components and explain how they relate.
  • Compare and contrast — explicitly state similarities and differences, not just descriptions of each separately.
  • Explain — give reasons; this command usually appears on lower-mark questions and does not require evaluation.

Timing

For a 20-mark essay question with roughly 40 minutes available, a practical split is: 3 minutes planning, 33 minutes writing, 4 minutes reviewing. Spending more than 5 minutes planning tends to cost more marks in lost writing time than the plan is worth. Spending zero minutes planning almost always costs more marks than the time saved.