IB History HL common mistakes
IB History HL · Understand the traps and how to avoid them.
In Paper 1, answering the source-comparison question by describing each source separately in turn ("Source A says… Source B says…") without ever stating a point of similarity or difference between them.
Candidates treat the question as two short comprehension tasks because the sources are provided and the instinct is to summarise all available content. The command term "compare and contrast" is read as "write about both", and the two-source structure of the question invites a two-paragraph description rather than a synthesis.
What to do instead
Before writing, draw a two-column grid with the comparison criteria as rows (origin/purpose, content claim, emphasis, tone) and each source as a column. Write one sentence per row that names the relationship explicitly: "Both sources agree that…", "Source B differs from Source A in that…". Train by rewriting past answers so every paragraph opens with a comparative clause, and check that no paragraph discusses only one source without naming the other.
In Paper 1, evaluating a source's value or limitation purely by its provenance label ("it is a British newspaper so it is biased") without linking that origin to a specific claim the source makes about the event in question.
Textbooks and mark schemes repeatedly use the words origin, purpose and limitation, so candidates memorise a template and apply it mechanically. They lack the substantive contextual knowledge to say what a particular newspaper, speech or memoir would be inclined to overstate or omit in this specific situation.
What to do instead
Use a fixed three-step sentence pattern that forces the link: "As a [type of source] produced by [author] for [purpose] in [year], it is likely to [emphasise/play down] [specific detail], which limits its value as evidence about [specific aspect of the event]." Practise by writing the contextual sentence first (what was at stake for this author at this date) and only then the evaluative sentence.
In Paper 1, treating the source-based questions as mini-essays: adding an introduction, background narrative and a conclusion, so time runs out before the final, highest-weighted question.
Candidates carry over essay habits from Papers 2 and 3 and believe length signals quality. They also over-invest in the early comprehension questions because those feel safe, leaving 15 minutes for a question worth a third of the paper.
What to do instead
Rehearse a timing plan in timed conditions: roughly 5 minutes reading and annotating sources, then allocate minutes in proportion to marks and stop at the clock. Answer in note-to-sentence form with no introduction and no conclusion, and practise writing the final extended question first in a mock to prove to yourself that it can be done in the time.
In Paper 2, writing a narrative of what happened in the two chosen regions or periods instead of answering the comparative question, so the essay never states an explicit similarity or difference.
The comparative structure of Paper 2 is unusual and candidates fall back on the chronological storytelling they practised at earlier levels. Where the question spans two regions, weak factual knowledge of the second case pushes candidates to pad the familiar one.
What to do instead
Build every paragraph around an explicit comparative sentence, and use a structure such as: criterion, case A evidence, case B evidence, judgement on the criterion. Before writing, list three or four comparison criteria (aims, methods, extent of change, role of foreign powers) and check each paragraph names at least two cases.
In Paper 2, ignoring the date range or the regional specification in the question and writing about a wider period or the wrong regions (for example, answering a question on the period 1929–1939 with material from 1919 and 1945).
Candidates revise topics rather than question wording, and under exam pressure they reach for the material they know best. The qualifiers in the question stem are skimmed rather than underlined.
What to do instead
Underline the dates, regions and command term before planning, and write a one-line scope statement at the top of the plan ("in scope: …; out of scope: …"). Reject any planned paragraph whose evidence falls outside the range, and if the question spans two regions, write the region names at the head of each paragraph as a checklist.
In Paper 2, using historians' names as decoration ("as Historian X argues…") without stating the interpretation or explaining how it answers the question.
Candidates believe named historians earn marks automatically and pick up quotations from revision guides without understanding the argument. They cannot distinguish an interpretation from a factual claim.
What to do instead
For each historian you plan to cite, write one sentence stating their thesis in your own words and one sentence on what evidence supports it. In the essay, use historiography only where it advances the argument, for example to set up a debate you then resolve with evidence. If you cannot state the thesis without the name, drop the reference.
In Paper 3, choosing the depth-study questions by topic familiarity alone and then writing an essay that ignores the question's focus (for example, answering "to what extent" with a list of causes rather than a sustained judgement).
Paper 3 requires three essays in a short time, so candidates select quickly and start writing immediately. The command term is treated as interchangeable, and the pressure to produce volume crowds out the argument.
What to do instead
Spend two minutes per essay writing a thesis sentence that directly answers the command term, plus a three-point outline. For "to what extent", commit to a degree in the thesis and weigh factors against each other in each paragraph. Choose questions only after reading all options, and prefer a question whose focus you can argue rather than one whose topic you know most about.
In Paper 3, producing three essays of unequal quality because the candidate runs out of time on the third, often leaving it unfinished or reduced to notes.
Candidates over-write the first essay, especially if it is their strongest topic, and underestimate the cumulative writing load of three essays. There is no per-question timing discipline.
What to do instead
Set a hard budget per essay (roughly 45 minutes including planning) and practise in full three-essay mocks with a visible clock. Write the essay you are least confident about first in practice, so you learn to compress. Aim for a complete, argued essay of moderate length on all three rather than one outstanding essay and two thin ones.
In the historical investigation, choosing a topic that is too broad or too close to the syllabus content, so the investigation becomes a summary of a taught topic rather than an independent enquiry.
Candidates pick subjects they already know to reduce research effort, and they confuse a topic area ("the Cold War") with a research question. The requirement that the investigation be genuinely independent is not planned for.
What to do instead
Draft a question that could be answered in 2,000–2,500 words and that has a clear analytical focus (a decision, a cause, an interpretation to test). Check it against the syllabus: if the answer is already covered by a taught unit, narrow it to a specific case, actor or debate. Write the question, then three sub-questions, before starting research.
In the historical investigation, presenting sources and evidence as an annotated list or a narrative of what historians say, without evaluating the sources or reaching and justifying a conclusion that answers the research question.
Candidates treat the investigation as a research log and equate gathering sources with analysis. The evaluation of sources and the reflective conclusion are the sections they leave until last and write hastily.
What to do instead
Structure the investigation around sections that each answer a sub-question, with source evaluation embedded where the source is used (origin, purpose, value, limitation tied to the specific claim). Reserve space for a conclusion that states the answer explicitly, weighs the strength of the evidence, and notes what would change the judgement. Draft the conclusion early and check every section supports it.