Edexcel IGCSE History: Paper 2 Investigation and Breadth Studies — Revision Notes

Condensed for the final weeks. For the full explanation, use the Paper 2 Investigation and Breadth Studies study guide.

Confirm your options before revising anything else

Paper 2 offers 13 total choices across two independent selections: 5 Historical Investigations and 8 Breadth Studies. Shared revision notes found online, or even a well-meaning classmate’s notes, may cover the wrong pairing entirely. Confirm your centre’s chosen Investigation and Breadth Study first — everything below assumes that is already settled.

The Historical Investigation tests a skill, not a fixed narrative

Because this component includes unseen sources in the exam itself, over- memorising narrative detail (as if it were a second Depth Study) is a misdirection of revision time. The actual skill tested by the source question is cross-referencing — identifying specific points where two sources agree and specific points where they disagree — not judging which source is individually “more useful” or “more reliable.” Comparing the usefulness of two sources is the house style of other boards’ papers, not this one. Revise the background narrative as context that supports cross-referencing, not as content to recall for its own sake.

Weak vs strong on the cross-referencing question:

Weak	Strong
Describes what each source says separately, then asserts one is “more useful” or “more reliable” than the other	Identifies specific points of agreement and specific points of disagreement between the two sources, using contextual knowledge to explain why

The Breadth Study tests change over time, not a list of events

A Breadth Study spans a long period — sometimes a century or more. Revising it as a sequence of disconnected events, rather than explicitly addressing change, continuity and pace of change, misses what the assessment objectives for this component reward. Build a timeline before anything else, marking:

• Turning points — moments where change accelerated or reversed.
• Periods of continuity — stretches where little changed.

Exam questions frequently ask “how far” or “how much” something changed over a stated period — a timeline-based answer directly supports that question type; a narrative list of events does not.

Assessment objective weighting to plan revision around

Four objectives, not three: AO1 (knowledge and understanding of key features and characteristics) carries 34% and AO2 (explaining, analysing and judging using concepts like cause, consequence, change and significance) carries 36% across the whole qualification — together the clear majority of marks. The remaining 30% splits into two separate objectives, not one “source-based” strand: AO3 (using source material to comprehend, interpret and cross-refer sources, 15%) and AO4 (analysing and evaluating historical interpretations, 15%), marked on different questions. On Paper 2, AO3 carries 15% (mostly through the Investigation) while AO4 carries a smaller 5% here, with the rest of AO4’s marks on Paper 1. Even on a source-based component like the Investigation, secure factual knowledge remains the foundation: strong source evaluation still depends on accurate contextual knowledge, not source-reading skill alone.

A shared method across both components

Step	Historical Investigation	Breadth Study
Build	Contextual background to interpret unseen sources	A timeline of turning points and continuity
Apply	Cross-reference two sources — identify specific points of agreement and disagreement, using context to explain why	Judge how far/how much change occurred over the stated period
Avoid	Memorising a fixed source-by-source narrative	Listing events without linking them to change

Practising the unseen-source question specifically

Because the Historical Investigation includes sources unseen before the exam, timed practice cross-referencing genuinely unfamiliar source pairs related to (but not identical to) the studied topic is the single most useful preparation activity beyond building contextual knowledge. When practising, write out explicitly: a specific point where the two sources agree, a specific point where they disagree, and the contextual knowledge that explains why they differ. Doing this as a fixed written routine, not just “in your head,” builds the habit that a rushed exam moment will otherwise skip.

Exam traps

• Revising the Investigation as if it were a Depth Study, over- memorising narrative and under-preparing source evaluation.
• Writing a Breadth Study answer as a sequence of events with no explicit judgement about change, continuity or pace.
• Using shared revision material without first confirming it matches your centre’s chosen Investigation and Breadth Study.
• Describing what each source says separately instead of identifying specific points where the two sources agree and disagree.
• Under-weighting factual recall because the Investigation is source- based, despite AO1 and AO2 together carrying the majority of marks.

Depth Studies vs Paper 2 — two different historical skills

Paper 1’s Depth Studies (see the companion revision notes for that paper) reward narrow, detailed period knowledge and source evaluation within a defined depth. Paper 2 deliberately asks for two different skills instead: enquiry-based source evaluation across less familiar material (the Investigation), and long-range analysis of change (the Breadth Study). Treating Paper 2 revision as “more of the same” as Paper 1, rather than recognising it tests genuinely different historical skills, is a common source of misdirected revision time in the final weeks before the exam.

Self-test

1. Why must you confirm your centre’s chosen options before revising Paper 2 content?
2. What is the actual skill the Historical Investigation tests, beyond narrative recall?
3. What should a Breadth Study timeline mark, beyond a simple list of dates?
4. What do “how far” or “how much” questions specifically require, and which preparation method supports them?
5. What proportion of the whole qualification’s marks do AO1 and AO2 together represent, and why does that matter even for a source-based component?

Answers: 1. Paper 2 offers 13 total choices across two independent selections, so shared or generic revision material may cover a different Investigation or Breadth Study than the one actually taught. 2. Cross-referencing the two sources — identifying specific points where they agree and specific points where they disagree, using contextual knowledge to explain why — not judging which source is individually more useful or more reliable. 3. Turning points where change accelerated or reversed, and periods of continuity where little changed. 4. A judgement about the extent or pace of change over a stated period; a timeline-based revision approach, rather than a narrative event list, directly supports answering this question type. 5. 34% (AO1) plus 36% (AO2), 70% combined; it matters because strong source evaluation on the Investigation still depends on accurate contextual knowledge, not source-reading skill in isolation.

Related resources

• Paper 2 Investigation and Breadth Studies study guide
• Paper 2 practice questions