Worked three-source evaluation
By UK A Level History · independent study · myAudience

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Worked three-source evaluation
Practice enquiry: Assess the value of these documents to a historian studying American explanations for a firmer policy towards Europe in 1946–1947.
Sources: A, Kennan to the Secretary of State, Moscow, 22 February 1946, secret diplomatic telegram (official transcript); B, Truman's message to Congress, 12 March 1947 (National Archives transcript); C, State Department release dated 4 June containing Marshall's Harvard remarks for 5 June 1947 (official transcript). The release is the surviving published text, not a recording establishing every spoken word.
A is valuable because it offers an internal contemporary explanation of how an American diplomat understood the Soviet challenge. Kennan's position in Moscow gave him a relevant standpoint, and the secret classification locates his audience within government rather than a mass public. The text connects its diagnosis to practical recommendations. For this enquiry, that is more useful than simply identifying hostility: it shows how a perception of danger could support a particular policy approach. The recommendation that the problem could be addressed without a general military conflict also qualifies any claim that firmness necessarily meant preparing an immediate war.
Its value has limits tied to the enquiry. The analysis is Kennan's assessment, not a transcript of Soviet leaders' private reasoning. His broad characterisations should be tested against evidence of particular actions and competing explanations. Secrecy removes one public audience but does not remove professional advocacy or selective reasoning. The strongest judgement is therefore that A is substantial evidence of an influential diplomatic perspective. It is less sufficient for establishing the actual motive behind every Soviet act, and cannot alone demonstrate how widely his advice was adopted. Circulation and decision records would be needed for a direct claim about policy influence.
B is especially valuable for studying public justification. Truman spoke to the body whose authority he needed for a request of $400 million concerning Greece and Turkey. His account makes British withdrawal a practical reason for American action and frames the decision through a larger opposition between political systems. This combination helps a historian explain how a specific funding gap was presented as a question of wider security and responsibility. The source also links economic assistance and administrative support to stability, so it contradicts a reading of early firmness as exclusively military.
The speech's purpose is a limitation on some uses and a strength for this one. Urgency and stark contrasts could help obtain support, and thus cannot be treated as neutral descriptions of all political actors. Yet persuasion is precisely what an enquiry into justification needs to examine. The acknowledgement of Greek governmental imperfections adds value: it shows an anticipated objection and the attempt to contain it, rather than a wholly unqualified claim that the recipient was ideal. The speech establishes the case made for action, not the later success of the aid, the views of all Americans or an inevitable regional chain reaction. Congressional debate, implementation records and evidence from Greece and Turkey would extend those enquiries.
C brings a different kind of explanation. Marshall identified damaged economic relationships as well as physical destruction and described a programme requiring European initiative. This makes the speech valuable for understanding how reconstruction could be presented as a means of securing political stability. The contrast with B is informative: one requested a particular appropriation from Congress; the other outlined a broader recovery approach to a different audience. They can be complementary without being identical. C's emphasis on exchange and confidence reveals an economic mechanism rather than merely a general expression of sympathy.
Its declared openness also needs contextual evaluation. Marshall presented the proposal as assistance against deprivation, while distinguishing governments that cooperated in recovery from those that obstructed it. A historian should examine both parts before claiming either total neutrality or an explicit exclusion already settled in June. Later acceptance, refusal and implementation belong to a different evidential stage. The document is consequently strong evidence for the publicly proposed rationale, but weaker evidence of how participants experienced the eventual programme or of its measured economic impact. Its 4 June release heading and 5 June delivery date should both be recorded accurately.
Taken together, the documents show different levels of explanation: an internal diagnosis of an opponent, a public case for a specific commitment, and a reconstruction proposal. Their agreement that stability matters does not make them independent witnesses to every external fact: they all emerged from American official settings. Nor does chronological order alone establish a chain in which A directly caused B and C. For this enquiry, their greatest combined value is showing how security concerns and economic concerns could be connected through different audiences and instruments. Their central shared limitation is the absence of the people and governments being described. A fuller explanation would add British decision records, Greek and Turkish evidence, European recovery debates and Soviet sources rather than claim that these three documents settle responsibility for the Cold War.
Why this is an evaluation: Each judgement names the precise enquiry, connects content to authorship or purpose, uses contextual knowledge, and states what additional evidence would resolve a limit. It neither discards advocacy as useless nor treats an official document as automatically correct. No numerical mark is assigned.
Worked example: Assess the value of Kennan, Truman and Marshall for investigating American policy explanations in 1946–1947.
A is valuable because it offers an internal contemporary explanation of how an American diplomat understood the Soviet challenge. Kennan's position in Moscow gave him a relevant standpoint, and the secret classification locates his audience within government rather than a mass public. The text connects its diagnosis to practical recommendations. For this enquiry, that is more useful than simply identifying hostility: it shows how a perception of danger could support a particular policy approach. The recommendation that the problem could be addressed without a general military conflict also qualifies any claim that firmness necessarily meant preparing an immediate war.
B is especially valuable for studying public justification. Truman spoke to the body whose authority he needed for a request of $400 million concerning Greece and Turkey. His account makes British withdrawal a practical reason for American action and frames the decision through a larger opposition between political systems. This combination helps a historian explain how a specific funding gap was presented as a question of wider security and responsibility. The source also links economic assistance and administrative support to stability, so it contradicts a reading of early firmness as exclusively military.
C brings a different kind of explanation. Marshall identified damaged economic relationships as well as physical destruction and described a programme requiring European initiative. This makes the speech valuable for understanding how reconstruction could be presented as a means of securing political stability. The contrast with B is informative: one requested a particular appropriation from Congress; the other outlined a broader recovery approach to a different audience. They can be complementary without being identical. C's emphasis on exchange and confidence reveals an economic mechanism rather than merely a general expression of sympathy.
Answer: Taken together, the documents show different levels of explanation: an internal diagnosis of an opponent, a public case for a specific commitment, and a reconstruction proposal. Their agreement that stability matters does not make them independent witnesses to every external fact: they all emerged from American official settings. Nor does chronological order alone establish a chain in which A directly caused B and C. For this enquiry, their greatest combined value is showing how security concerns and economic concerns could be connected through different audiences and instruments. Their central shared limitation is the absence of the people and governments being described. A fuller explanation would add British decision records, Greek and Turkish evidence, European recovery debates and Soviet sources rather than claim that these three documents settle responsibility for the Cold War.
Why this is an evaluation: Each judgement names the precise enquiry, connects content to authorship or purpose, uses contextual knowledge, and states what additional evidence would resolve a limit. It neither discards advocacy as useless nor treats an official document as automatically correct. No numerical mark is assigned.
Check your understanding: Which claim is supported: Kennan’s telegram proves every Kremlin intention, or reveals Kennan’s interpretive framework?
Answer: The second: it reveals Kennan’s framework for interpreting Soviet power. Claims about Soviet intentions require relevant Soviet or other contemporary evidence, while a claim of direct influence also needs circulation and decision records.
Why: Review the actual dated sources and their limits. Reading and these unmarked practice models do not establish mastery, a predicted grade, full route coverage or authenticated independent NEA.