OCR A-Level Geography Geographical debates (03), June 2025: Question 14

33 marks · Hard difficulty · Extended Response

Assess the relative importance of economic factors in influencing the spread of disease.

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Question 14 marked with an asterisk: 'Assess the relative importance of economic factors in influencing the spread of disease. [33]'
Question text

Assess the relative importance of economic factors in influencing the spread of disease. [33]

Mark scheme

Show the mark scheme Mark scheme for Question 14 worth 33 marks (AO1: 9 marks, AO2: 24 marks). Outlines four levels of response for AO1 (demonstrating knowledge and understanding of factors influencing disease spread such as economic, social, environmental, and government roles) and AO2 (application of knowledge and understanding to evaluate the relative importance of economic factors vs other factors such as environmental, physical, and epidemiological transition), alongside quality of extended response descriptors.

Question Answer Mark Guidance

Assess the relative importance of economic factors in 33 Indicative content

influencing the spread of disease. AO1 x9 AO1 – 9 marks

AO2 x24 Demonstrating knowledge and understanding of factors

AO1 influencing the spread of disease could potentially include:

Level 4 (7–9 marks) • Economic e.g. affordability of prevention / treatment;

research; impacts on housing, infrastructure (e.g. water,

Demonstrates comprehensive knowledge and understanding energy); diets

of factors influencing the spread of disease. • Social e.g. lifestyle choices e.g. smoking

• Environmental / physical e.g. climate and food

Level 3 (5–6 marks) • Roles of governments – trans-national, national, regional

Demonstrates thorough knowledge and understanding of + local

factors influencing the spread of disease.

These factors can be considered at a variety of scales, global,

Level 2 (3–4 marks) national, regional and local.

Demonstrates reasonable knowledge and understanding of

factors influencing the spread of disease. AO2 – 24 marks

Application of knowledge and understanding to analyse and

Level 1 (1–2 marks) evaluate the relative importance of economic factors in

Demonstrates basic knowledge and understanding of factors influencing the spread of disease could potentially include:

influencing the spread of disease.

• Economic factors – economic development has tended to

0 marks lead to decreasing frequency of communicable diseases

No response or no response worthy of credit. with an increase in the prevalence of non-communicable

diseases.

AO2 • Epidemiological transition – appealing in its structured

Level 4 (19–24 marks) progressive view but it is challenged e.g. ability even

Demonstrates comprehensive application of knowledge and amongst very wealthy societies to deal with emerging

understanding to provide a clear, developed and convincing diseases e.g. antibiotic resistance of some bacteria +

analysis that is fully accurate of the relative importance of vulnerability to zoonotic disease. Covid 19 could be

economic factors in influencing the spread of disease. quoted to suggest some weakness in developed

societies to cope.

Demonstrates comprehensive application of knowledge and • Social factors – lifestyle choices but these can be heavily

understanding to provide a detailed and substantiated influenced by economic factors

evaluation that offers secure judgements leading to rational

• Environmental factors – global warming → diffusion of

conclusions that are evidence based as to the relative

disease to locations previously free; impact of natural

importance of economic factors in influencing the spread of

hazards;

disease.

• Political factors – can be linked with economic and

choices made regarding health care

Relevant concepts are authoritatively discussed.

Mark Scheme June 2025

Level 3 (13–18 marks)

Demonstrates thorough application of knowledge and

understanding to provide a clear and developed analysis that

shows accuracy of the relative importance of economic factors

in influencing the spread of disease.

Demonstrates thorough application of knowledge and

understanding to provide a detailed evaluation that offers

generally secure judgements, with some link between rational

conclusions as to the relative importance of economic factors

in influencing the spread of disease.

Relevant concepts are discussed but this may lack some

authority.

Level 2 (7–12 marks)

Demonstrates reasonable application of knowledge and

understanding to provide a sound analysis that shows some

accuracy of the relative importance of economic factors in

influencing the spread of disease.

Demonstrates reasonable application of knowledge and

understanding to provide a sound evaluation that offers

generalised judgements and conclusions, with limited use of

evidence as to the relative importance of economic factors in

influencing the spread of disease.

Concepts are discussed but their use lacks precision.

Level 1 (1–6 marks)

Demonstrates basic application of knowledge and

understanding to provide a simple analysis that shows limited

accuracy of the relative importance of economic factors in

influencing the spread of disease.

Demonstrates basic application of knowledge and

understanding to provide an un-supported evaluation that

offers simple conclusions as to the relative importance of

economic factors in influencing the spread of disease.

Mark Scheme June 2025

Concepts are not discussed or are so inaccurately.

0 marks

No response or no response worthy of credit.

Quality of extended response

Level 4

There is a well-developed line of reasoning which is clear and

logically structured. The information presented is relevant and

substantiated.

Level 3

There is a line of reasoning presented with some structure.

The information presented is in the most-part relevant and

supported by some evidence.

Level 2

The information has some relevance and is presented with

limited structure. The information is supported by limited

evidence.

Level 1

The information is basic and communicated in an unstructured

way. The information is supported by limited evidence and the

relationship to the evidence may not be clear.

How to answer it

OCR A-Level Geography • Geographical Debates • Disease Dilemmas

Question 14*: Assessing Economic Factors in the Spread of Disease [33 Marks]

What this question tests

This is an extended, synoptic 33-mark essay assessing two distinct Assessment Objectives:

  • AO1 (9 Marks): Comprehensive, accurate geographical knowledge of factors determining disease transmission and diffusion (economic, physical/environmental, socio-cultural, and political) across multiple scales (global to local).
  • AO2 (24 Marks): Applied analytical evaluation to judge the relative importance of economic factors compared to other drivers, supported by explicit models (e.g. Omran’s Epidemiological Transition Model) and real-world case studies.
  • Quality of Extended Response (QER): Logical structuring, sustained argument, and a clear, substantiated conclusion that avoids one-sided description.

1. Mark Scheme Architecture & Level Descriptors

Understanding how examiners award the 33 marks

📐 Mark Breakdown

  • AO1: 9 marks total
    Level 4 (7–9 marks): Comprehensive, accurate knowledge.
    Level 3 (5–6 marks): Thorough knowledge.
    Level 2 (3–4 marks): Reasonable knowledge.
    Level 1 (1–2 marks): Basic/isolated facts.
  • AO2: 24 marks total
    Level 4 (19–24 marks): Convincing, balanced analysis with sustained, substantiated evaluative judgements.
    Level 3 (13–18 marks): Sound evaluation, but judgements lack consistent authority.
    Level 2 (7–12 marks): Descriptive; generalised judgements.
    Level 1 (1–6 marks): Superficial; un-evidenced assertions.

🧠 Top-Level (29–33 Mark) Differentiators

  • Relativity: Never discuss economics in isolation. You must weigh economic drivers against environmental, political, and socio-cultural factors.
  • Multi-scalar thinking: Show how factors act differently at global scales (air travel, trade) versus local scales (overcrowded housing, lack of piped sanitation).
  • Nuance & Exceptions: High economic wealth does not eliminate disease—it shifts disease profiles towards non-communicable diseases (NCDs) and creates new vulnerabilities (e.g., global connectivity diffusing pandemics like COVID-19).

2. High-Scoring Essay Structure Plan

A four-pillar framework designed to hit Level 4 on AO1 and AO2

💡 1. Introduction & Economic Primacy

Focus: Define disease types and establish Omran's Epidemiological Transition Model (ETM).

  • Define communicable (infectious) vs non-communicable (lifestyle/degenerative) diseases.
  • Role of Wealth: Economic development funds clean water, sewage systems, nutrition, and advanced pharmaceutical research (e.g., antiretroviral therapy for HIV).
  • The Paradox: Wealth transitions populations from Stage 2 (receding pandemics) to Stage 4 (delayed degenerative diseases), but creates high rates of cardiovascular disease, obesity, and diabetes.

💡 2. Environmental & Physical Factors

Focus: Physical limits vs economic mitigation capacity.

  • Climatic Control: Vector-borne diseases (e.g., Malaria, Dengue) require specific physical thresholds (temp 16–32°C, high humidity, standing water).
  • Climate Change: Expanding geographical range and altitudinal limits of vectors (e.g., Dengue spreading to temperate zones).
  • Evaluation: Physical conditions dictate where vectors can survive, but economic resources determine whether a community can eradicate them (e.g., US eradicated malaria in 1951; sub-Saharan Africa still battles it).

💡 3. Globalisation & Connectedness

Focus: How economic flows accelerate transmission.

  • Network Integration: High economic activity drives international business travel, global supply chains, and tourism.
  • Diffusion Velocity: SARS-CoV-2 spread rapidly through major global hubs (London, New York, Milan) before penetrating peripheral, poorer rural areas.
  • Evaluation: Economic connectivity acts as a disease vector itself, undermining the protective barrier of national wealth.

💡 4. Political Decisions & Governance

Focus: Why wealth without governance fails.

  • Economic wealth is useless without political willingness to allocate it to public healthcare systems (e.g., contrasting COVID-19 mortality in USA vs New Zealand or Vietnam).
  • Roles of supranational bodies (WHO, GAVI) in subsidising vaccines to decouple disease defense from GDP.
  • Conflict, corruption, and political instability can dismantle healthcare infrastructure overnight (e.g., resurgence of Polio in Afghanistan/Yemen).

3. Exemplar Paragraphs & Evaluative Analysis

Model extracts illustrating Level 4 AO1 & AO2 synthesis

✅ Exemplar: Evaluating the Epidemiological Transition (AO1 + AO2)

"Economic development is undoubtedly a fundamental macro-determinant of disease distribution, as formalised in Omran’s Epidemiological Transition Model. At lower levels of economic development (LIDCs like Chad and South Sudan), low capital investment in basic municipal infrastructure leads to high incidence of water-borne communicable diseases such as Cholera. Conversely, capital accumulation facilitates piped municipal water, closed sewer networks, and antibiotic accessibility, successfully compressing infectious mortality.

However, to categorise economic growth purely as a protective factor against disease is flawed. Economic prosperity systematically shifts disease etiology towards non-communicable diseases (NCDs). In ACs like the UK, disposable incomes, mechanised sedentary labour, and the proliferation of cheap ultra-processed foods have led to an explosion in type 2 diabetes and coronary heart disease. Furthermore, the emerging 'Stage 5' of the ETM—characterised by antimicrobial resistance (e.g., MRSA) and novel zoonotic spillover events—proves that advanced economic status does not guarantee immunity from communicable threats."

Examiner note: Demonstrates Level 4 by directly naming the geographical model, clearly contrasting LIDC vs AC contexts, and recognising that economic development shifts disease burden rather than simply eliminating it.

✅ Exemplar: Evaluating Environmental Triggers vs Economic Resilience

"While environmental parameters provide the necessary physical envelope for vector survival, economic capacity dictates human vulnerability and diffusion rates. For example, the transmission of Plasmodium falciparum malaria is biologically constrained by isotherms (requiring temperatures above 18°C for the parasite to mature inside the Anopheles mosquito).

Yet, the historical geography of malaria reveals that economic factors are fundamentally more decisive in determining actual infection rates: southern Europe and the southern United States naturally sit within this vector niche, but achieved total eradication mid-20th century through centrally funded chemical eradication programs (DDT) and agricultural land drainage. Meanwhile, in ecologically comparable parts of sub-Saharan Africa, poverty traps prevent the universal procurement of long-lasting insecticidal nets (LLINs) or artemisinin combination therapy (ACT). Thus, while climate determines where vector-borne disease can exist, economic factors determine whether it does."

Examiner note: Excellent AO2 evaluation. The student uses physical geography concepts precisely (isotherms, vector cycles) but establishes clear relative importance through comparative historical evidence.

4. Common Pitfalls & Misconceptions

Where students throw away marks on this 33-mark question

❌ What Weak Responses Do

  • Treating the essay as a "poverty causes disease" list: Describing dirty water and poor housing in LIDCs for 4 pages without balancing other factors.
  • Ignoring Non-Communicable Diseases (NCDs): Forgetting that disease includes cancer, stroke, heart disease, and diabetes, which correlate positively with wealth.
  • Ignoring the prompt word "Relative": Writing isolated paragraphs on "Economic", then "Physical", then "Political", with zero comparative linking words (e.g., "more decisive than", "heavily mediated by", "fundamental prerequisite").
  • Neglecting Scale: Failing to distinguish between personal economic status (poverty/diet) and national economic capacity (state health budgets, sanitation).

🧠 How to Secure Level 4 (Top Band)

  • Use Evaluative Signposts: Begin every paragraph with a topic sentence that weighs relative importance rather than just stating a topic.
  • Incorporate Contemporary Evidence: Use COVID-19, Ebola (West Africa 2014), or Malaria to demonstrate that high GDP alone does not stop transmission without effective governance and social compliance.
  • Form a Nuanced Conclusion: State clearly that economic factors are the underlying foundation that shapes a population's resilience, but physical geography sets the parameters, and political governance decides the effectiveness of interventions.

5. Self-Assessment Checklist Before Writing

📐 Synoptic Assessment Rubric

Check off these criteria across your essay to ensure full coverage of the mark scheme:

  1. Conceptual Framework: Have you referenced Omran's Epidemiological Transition Model (ETM)?
  2. Disease Balance: Have you evaluated both communicable (malaria, cholera, COVID-19) and non-communicable diseases (CVD, lung cancer, type 2 diabetes)?
  3. Comparative Drivers: Have you contrasted economic wealth with physical factors (climate, topography), cultural factors (diet, religious burial customs, vaccine hesitancy), and political governance?
  4. Multi-Scalar Case Studies: Are your examples specific and contextualised across LIDCs, EDCs, and ACs (e.g., UK, Haiti, DRC, USA)?
  5. Substantiated Conclusion: Does your final judgement directly answer the question of relative importance rather than just repeating previous points?

Topics

Topic 3.2 Disease Dilemmas · 1.a. Diseases can be classified and their patterns mapped. The spread of diseases is complex and influenced by a number of factors. · 1.b. There is a relationship between physical factors and the prevalence of disease which can change over time. · 2.a. As countries develop economically the frequency of communicable diseases decreases, while the prevalence of noncommunicable diseases rises. · 4.a. Increasing global mobility impacts the diffusion of disease and the ability to respond to it, at a variety of scales.

Question and mark scheme from the OCR A-Level Geography examination, Geographical debates (03), June 2025. QuestionVault is an independent revision resource; questions remain the copyright of the awarding body.