QCE Modern History IA2 independent source investigation: the 2026 guide
A complete guide to the QCE Modern History IA2 (Independent source investigation). The QCAA structure (key inquiry question with 3-5 sub-questions, 4-6 student-selected sources, critical summary of evidence), marking criteria, OPCVR-based source evaluation, and the writing moves that secure top band on this Unit 3 investigation.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this guide is for
QCE Modern History IA2 is a major Unit 3 assessment (25 percent). Strong IA2 requires a precisely framed key inquiry question with 3-5 sub-questions, careful selection of 4-6 primary and secondary sources NOT studied in class, rigorous OPCVR evaluation of each, and a synthesised critical summary of evidence. This guide covers each step.
Format
- Word count. 1500-2000 words.
- Duration. Conducted over several weeks during Unit 3.
- Sources. 4-6 sources, mix of primary and secondary, none previously studied in class.
- Structure. Key inquiry question with 3-5 sub-questions, followed by a critical summary of evidence.
- Worth. 25 percent of subject result.
Key inquiry question
Specific, testable, with multiple perspectives possible. Sits within the Unit 3 national experience your school is teaching (most commonly Australia 1914 to 1949).
Strong examples:
- "To what extent did the 1916 and 1917 conscription debates expose existing fault lines in Australian society?"
- "How significant was the fall of Singapore in February 1942 for Australian strategic policy under Curtin?"
- "What role did the Depression of 1929 to 1939 play in reshaping Australian women's paid employment?"
Weak examples:
- "What caused Australian division during the First World War?" (too broad)
- "Was Curtin a good wartime leader?" (yes/no, too vague)
Sub-questions (3 to 5)
A strong IA2 turns the key inquiry question into 3-5 sub-questions that the investigation will answer. For the conscription example:
- What were the political alignments for and against conscription in 1916?
- How did Catholic-Protestant tensions surface in the No campaign?
- What role did organised labour play in the second referendum?
- How did regional and class differences shape the No vote pattern?
The sub-questions structure the source search and the critical summary that follows.
Source selection
4-6 sources, none studied in class, with a balanced mix of primary and secondary.
Primary sources to consider (Unit 3 Australia 1914 to 1949):
- Hansard speeches on the conscription bills (1916, 1917).
- Daniel Mannix's anti-conscription speeches (1916, 1917).
- Recruitment posters and government propaganda from the period.
- Press editorials from the Catholic and labour press.
- The 1916 and 1917 referendum results broken down by state and electorate.
Secondary sources to consider:
- Joan Beaumont (Broken Nation, 2013) - revisionist on home-front division.
- Stuart Macintyre (A Concise History of Australia) - mainstream historiography.
- Manning Clark (A History of Australia, vol VI) - nationalist tradition.
- Marilyn Lake and Henry Reynolds (What's Wrong with Anzac?, 2010) - postcolonial reframing.
Each source should genuinely contribute to one or more of your sub-questions.
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 for the critical summary of evidence:
- Introduction (around 150 words)
- State the key inquiry question. List the 3-5 sub-questions. Briefly preview the source set and the lines of evidence.
- Body 1 (around 350 words)
- First sub-question. 1-2 sources cited and evaluated with OPCVR.
- Body 2 (around 350 words)
- Second sub-question. New sources or new aspects of prior sources.
- Body 3 (around 350 words)
- Third sub-question. Different perspective or aspect; engage where sources disagree.
- Critical summary of evidence (around 300 words)
- Bring the sources together across sub-questions. Reach a calibrated answer to the key inquiry question. Note where the evidence is contested or incomplete.
- Conclusion (around 100 words)
- Direct answer to the key inquiry question with a calibrated judgement.
- References
- Full citations.
Historiographical engagement
IA2 expects engagement with historiographical debate.
Cite specific historians. Identify the school they represent. Acknowledge contestability.
Example: "While the nationalist tradition (represented by Manning Clark) treats the conscription debates as a temporary disturbance to a unifying war effort, Joan Beaumont (Broken Nation, 2013) reframes them as evidence of pre-existing fault lines (Catholic-Protestant, urban-rural, class) that the war made visible rather than created. Marilyn Lake and Henry Reynolds add a further reframing by positioning the Anzac tradition alongside the simultaneous violence of the frontier wars."
A worked critical summary
The five sources together reveal that the 1916 and 1917 conscription debates exposed structural divisions within Australian society rather than creating them. Source 1 (Hansard, October 1916) demonstrates the formal Labor split over the first plebiscite; Source 2 (Mannix's December 1917 speech) shows the Irish-Catholic dimension of the No campaign articulated from the pulpit. Source 3 (Beaumont 2013) and Source 4 (Macintyre 2020) provide differing secondary interpretations, with Beaumont emphasising the depth of the division and Macintyre situating it within a longer pattern of sectarian politics. Source 5 (regional referendum returns) corroborates that the No vote concentrated in working-class urban electorates and Catholic-majority rural ones. Synthesising across the primary and secondary sources, this investigation concludes that the conscription debates were a stress test in which existing cleavages (sectarian, class, regional) became operationally visible; the war did not so much fracture Australian political life as expose how fractured it already was.
A critical summary of this kind integrates multiple sources with named historians, recognises historiographical contestability, and reaches a calibrated answer to the key inquiry question.
Marking criteria
QCAA marks IA2 against five published criteria:
- Devising historical questions and conducting research (5 marks). A specific key inquiry question with 3-5 sub-questions, supported by purposeful research.
- Analysing historical sources and evidence (5 marks). OPCVR evaluation of each source.
- Synthesising evidence (5 marks). Evidence brought together across sources, not described one by one.
- Evaluating historical interpretations (5 marks). Named historians; competing schools engaged.
- Creating a response that communicates meaning (5 marks). Clear structure, accurate citations, complete bibliography.
Top band requires excellence across all five criteria.