QCE Modern History IA3 independent source investigation: the 2026 guide

What this guide is for

QCE Modern History IA3 is the major Unit 4 assessment (25 percent). Strong IA3 requires careful source selection, rigorous OPCVR evaluation, and synthesised argument. This guide covers each.

Format

• Word count. 1500-2000 words.
• Duration. Conducted over several weeks during Unit 4.
• Sources. 5-8 typically, mix of primary and secondary.
• Worth. 25 percent of subject result.

Research question

Specific, testable, with multiple perspectives possible.

Strong examples:

• "To what extent was American economic policy responsible for the origins of the Cold War, 1945-49?"
• "How did the civil rights movement use non-violent resistance as a strategy 1954-1968?"
• "What role did Gorbachev's reforms play in the dissolution of the Soviet Union?"

Weak examples:

• "What caused the Cold War?" (too broad)
• "Was Stalin a good leader?" (yes/no, too vague)

Source selection

5-8 sources. Mix of primary and secondary.

Primary sources to consider (Unit 4 Cold War):

• Truman's address to Congress, March 1947 (Truman Doctrine).
• Churchill's Fulton speech, March 1946 (Iron Curtain).
• Stalin's election speech, February 1946.
• Newsreel footage of the Berlin Airlift.
• Photographs of the Berlin Wall.

Secondary sources to consider:

• Schlesinger Jr (1965) - orthodox.
• Williams (1959) - revisionist.
• Gaddis (1997) - post-revisionist.
• Recent monographs (Service, Zubok, Leffler).

Each source should contribute to your answer.

OPCVR for each source

For every source you cite, apply OPCVR systematically:

Origin. Who? When? Where?

Purpose. Why? For what audience?

Context. Broader historical situation?

Value. What does it tell us about the question?

Reliability. How trustworthy? What limits?

Report structure

A reliable structure:

Introduction (around 150 words). State the research question. Outline the response approach. Preview the argument.

Body 1 (around 350 words). First line of argument with 2 sources cited and evaluated.

Body 2 (around 350 words). Second line. Complicates or qualifies.

Body 3 (around 350 words). Third line. Different perspective or aspect.

Synthesis (around 300 words). Bring the sources together. Argue the calibrated answer.

Conclusion (around 100 words). Direct answer to the research question.

References. Full citations.

Historiographical engagement

IA3 expects engagement with historiographical debate.

Cite specific historians. Identify the school they represent. Acknowledge contestability.

Example: "While the orthodox view (represented by Schlesinger 1965) attributes Cold War origins to Soviet expansion, the revisionist position (Williams 1959) emphasises American economic interests. The post-revisionist synthesis (Gaddis 1997) draws on opened Soviet archives to argue both sides contributed."

A worked synthesis paragraph

The five sources together reveal that the origins of the Cold War cannot be attributed solely to either superpower's behaviour. Source 1 (Truman's Doctrine speech) demonstrates the rapid American mobilisation of containment language by March 1947; Source 2 (Stalin's 1946 election speech) shows Stalin's framing of capitalist-communist incompatibility from a Soviet perspective. Source 3 (Williams 1959) and Source 4 (Schlesinger 1965) provide opposed secondary interpretations, with Williams emphasising American economic imperialism and Schlesinger emphasising Soviet expansionism. Source 5 (Gaddis 1997) integrates evidence from opened Soviet archives to argue that both sides' actions were shaped by mutual misperception within a structural bipolar context. Synthesising across the primary and secondary sources, this investigation concludes that American economic policy was a substantial but not sole cause of the Cold War's origins; the response was conditioned by the bipolar power vacuum left by WWII and by ideological incompatibility that no specific policy decisions could have fully addressed.

A response of this kind integrates multiple sources with named historians, recognises historiographical contestability, and reaches a calibrated conclusion.

Marking criteria

QCAA rewards:

1. Specific researchable question.
2. Rigorous source selection.
3. OPCVR evaluation of each source.
4. Synthesis of evidence across sources.
5. Argument with calibrated answer.
6. Clear communication.

Top band requires excellence in all six.

Common errors

Question too broad. Specify period, scope, perspective.

Sources listed not evaluated. OPCVR for each.

Plot summary in place of analysis. Argue what sources show.

No historiography. Top band requires named historians and schools.

Description without argument. A descriptive report does not score top band; an argued one does.

Conclusion without answer. Always answer the research question explicitly.

In one sentence

QCE Modern History IA3 is a 1500-2000 word independent source investigation on a Unit 4 question using 5-8 student-selected sources; top-band reports use a specific researchable question, rigorous OPCVR evaluation of each source, synthesised argument across multiple perspectives with historiographical engagement (named historians, named schools), and a conclusion that directly answers the question with calibrated judgement.