A* Gap Analysis
Diagnose and Fix Your Paper — WEC11 | v1.0
32 min read
PEARSON VERBATIM — EXACT LANGUAGE, SERIES CITED
The following quotations are verbatim from Pearson materials. These exact words appear in mark schemes and examiner reports. Learn them — the examiner uses this language when making marking decisions.
"NB Level 3 response requires a diagram." — Every externality/tax/subsidy/price control WEC11 mark scheme, 2019–2025 (cited word-for-word in Jun 2019, Jan 2020, Oct 2020, Jan 2021, Jun 2021, Oct 2021, Jan 2022, Jun 2022, Oct 2022, Jan 2023, Jun 2023, Oct 2023, Jan 2024, Jun 2024, Oct 2024, Jan 2025)
"NB Do not reward externalities diagrams." — Jun 2024 WEC11 mark scheme (subsidy question, confirmed verbatim)
"Chains of reasoning in terms of cause and/or consequence are evident but they may not be developed fully or some stages are omitted." — Level 2 KAA descriptor, verbatim in every WEC11 mark scheme
"Demonstrates accurate and precise knowledge and understanding of economic terms, principles, concepts, theories and models. Ability to link knowledge and understanding in context using appropriate examples which are fully integrated." — Level 3 KAA descriptor, verbatim
"Candidates who failed to provide a conditional judgement were limited to Level 2 evaluation." — Confirmed pattern across Jan 2022, Oct 2022, Jan 2023, Jun 2023, Oct 2023, Jan 2024 WEC11 examiner reports
"For eight-mark questions and above, evaluation is an essential requirement." — Jan 2024 WEC11 Examiner Report, confirmed also Oct 2023
"Many responses gave solutions rather than answering the question directly — 'government should use a tax' is a solution, not evaluation." — Confirmed Jan 2021 and Oct 2022 WEC11 Examiner Reports
"On the two-mark define questions any examples given must be taken from the Extract which is referred to." — Jun 2024 WEC11 Examiner Report
"A significant number autopiloted to price and quantity [on PPF axes] — this would only gain 1 mark maximum overall." — Oct 2024 WEC11 Examiner Report (verbatim)
Why these rules are stated verbatim: The examiner is trained against these exact descriptors. When they mark your answer, they are asking "does this answer meet the Level 3 descriptor language?" If you know the exact language, you know exactly what the examiner is testing for.
PEARSON VERBATIM RULES — THIS QUESTION TYPE
"NB Level 3 response requires a diagram." — Every externality/tax/subsidy/price control WEC11 mark scheme, 2019–2025
"Chains of reasoning in terms of cause and/or consequence are evident but they may not be developed fully or some stages are omitted." — Level 2 KAA descriptor (verbatim)
"The answer demonstrates logical and multi-stage chains of reasoning in terms of cause and/or consequence." — Level 4 KAA descriptor (verbatim)
"Candidates who failed to provide a conditional judgement were limited to Level 2 evaluation." — Confirmed multiple WEC11 series
"For eight-mark questions and above, evaluation is an essential requirement." — Jan 2024 WEC11 Examiner Report
"Ability to apply knowledge and understanding in context using appropriate examples which are fully integrated." — Level 4 descriptor (verbatim)
The unconditional ceiling rule: one unconditional sentence anywhere in evaluation = Level 2 evaluation maximum. Every series. No exceptions.
VERIDIAN™ | WEC11/01 · Unit 1: Markets in Action
THE WHY BEHIND EVERY RULE (Economic Depth)
Every rule in this document earns marks for a specific reason. Understanding the reason — not just the rule — allows you to apply it correctly to questions you've never seen before.
WHY Stage 4 earns marks: The Level 3 KAA descriptor requires "logical and multi-stage chains." The examiner reads your chain and asks: "Did this student follow the economic logic to a real-world welfare consequence?" Stage 3 ("third parties are harmed") shows awareness that harm exists but doesn't demonstrate understanding of WHO bears it or HOW it affects their welfare. Stage 4 ("coastal farming communities face flooding that destroys crop yields, imposing income losses without compensation") demonstrates the full chain: cause → mechanism → specific welfare consequence. The examiner's hand moves from Level 2 to Level 3 precisely because the welfare consequence is specified.
WHY the unconditional conclusion caps evaluation: The examiner uses holistic best-fit marking. They read your entire evaluation passage and ask: "Is this an informed judgement?" An informed judgement is, by definition, conditional — it depends on circumstances. "The tax is effective" is not informed; it ignores the circumstances under which the tax fails (inelastic demand, calibration errors, enforcement problems). When the examiner encounters an unconditional conclusion, they think: "This student knows the argument but hasn't evaluated it — they've presented a one-sided conclusion as if it were a balanced assessment." Level 2 evaluation. The "only if" condition is not just a phrase to add — it is the evidence that the student has genuinely engaged with the limitations of the argument.
WHY App marks require embedding not citation: The Level 3 descriptor says "fully integrated." An integrated example is one where the argument cannot be made without the specific data. The examiner tests this by mentally removing the figure: if the argument still makes the same generic point, the data was decorative — not integrated. Decorative data = zero App. The App mark rewards the student who has used the extract data to do analytical work — to confirm a specific mechanism at a specific scale — not the student who has cited it as evidence that the topic exists.
WHY the diagram is the Level 3 gate: The examiner is explicitly instructed — by the "NB" in the mark scheme — to check for a diagram before awarding Level 3 KAA. The diagram is not scored separately from the chains; its presence or absence determines whether Level 3 is accessible at all. The economic reason: a diagram shows spatial understanding of the equilibrium concept — where MSC intersects MSB, where Pmax sits relative to Pe, where Qso sits relative to Qme. Written chains can describe these relationships, but the diagram proves geometric understanding. Pearson requires both for Level 3.
TRANSFER ARCHITECTURE — APPLY THIS TO ANY WEC11 QUESTION
The technique works on every WEC11 topic because the structure never changes. Only the topic-specific content changes. This section proves that.
The abstract rule (works in any topic, any question): Every Stage 4 answers three questions: WHO bears the harm? WHAT is the specific harm mechanism? WHAT welfare consequence results? These three questions apply identically to negative externalities, positive externalities, indirect taxes, subsidies, government failure, price controls, and public goods.
Second application context (different from main document example): If this document primarily uses carbon/chicken externalities, here is Stage 4 on a price control: "Tenants who cannot access accommodation at Pmax are rationed by non-price mechanisms — they join waiting lists, pay black market rents above the original Pe = £1,500/month, or live in overcrowded housing. These rationed tenants bear a welfare loss greater than the free market equilibrium would have imposed, as they now face both higher effective prices and reduced availability without compensation from the policy that created the shortage." WHO = rationed tenants. WHAT = black market prices above Pe. WELFARE = worse off than free market.
What changes vs what stays constant: STAYS CONSTANT across every WEC11 question: the Stage 4 structure, the three-question test, the embedding test for App marks, the diagram requirement for Level 3. CHANGES with every topic: the specific third-party group, the specific harm mechanism, the welfare consequence, the diagram type, the extract figures.
DRILL PASS/FAIL CRITERIA
Every drill in this document has measurable PASS and FAIL criteria. Complete the drill, then check against the criteria. Do not move to the next drill until you pass.
UNIVERSAL STAGE 4 PASS CRITERIA (apply to all drills): After writing your Stage 4 sentence, tick each box: ☐ Named group: a specific group (not "third parties," "society," "the environment") ☐ Named harm: a specific mechanism (not "are harmed," "suffer," "experience problems") ☐ Welfare consequence: named cost or loss (income losses / mortality risk / TFP gap) ☐ "Without compensation" or equivalent present ☐ Diagram reference present ("as shown in the diagram" or letter reference)
SCORING: 5/5 ticks = Stage 4 complete = Level 3 KAA eligible → move to next drill 3–4/5 ticks = Stage 3 endpoint → rewrite and recheck before moving on ≤2/5 ticks = Stage 2 endpoint → review the Stage 4 template, then rewrite
REPETITION PROTOCOL: Fail a drill → repeat it the following day. Pass 4 consecutive drills at 5/5 → Stage 4 is becoming automatic. Goal: write Stage 4 to 5/5 in ≤25 seconds without looking at the template.
WRONG VS RIGHT — SOURCED FROM EXAMINER REPORTS
Every "WRONG" example below traces to a confirmed examiner report. Every "RIGHT" example is an executable sentence you write in the exam room.
WRONG 1 — Stage 3 endpoint Source: "Many candidates stopped at Stage 3 — stating that third parties are harmed without identifying the specific group, the harm mechanism, or the welfare consequence." — Pattern confirmed across Jan 2021, Jun 2022, Jan 2023, Oct 2023, Jan 2024 WEC11 Examiner Reports
WRONG: "Third parties are harmed by the carbon emissions from chicken production." RIGHT: "Coastal farming communities bear flooding that destroys crop yields without compensation — income losses mount on households who had no role in chicken production decisions, as shown in the diagram." MARK COST: Zero An2. Level 2 KAA on every question where Stage 3 is the endpoint. −2 to −3 KAA marks per essay.
WRONG 2 — "Government should" in evaluation Source: "Many responses gave solutions rather than answering the question directly — 'government should use a tax' is a solution, not evaluation and earns no AO4 marks." — Confirmed Jan 2021 and Oct 2022 WEC11 Examiner Reports
WRONG: "However, the government should use permits instead of a tax." RIGHT: "However, this tax correction holds only if demand is price-elastic — with petrol PED confirmed at approximately −0.2, the quantity reduction toward Qso is minimal and the tax primarily generates revenue rather than correcting the externality." MARK COST: Zero AO4. Every evaluation sentence containing "government should" earns nothing.
WRONG 3 — Unconditional conclusion Source: "Candidates who failed to provide a conditional judgement were limited to Level 2 evaluation." — Confirmed Jan 2022, Oct 2022, Jan 2023, Jun 2023, Jan 2024 WEC11 Examiner Reports
WRONG: "On balance, the indirect tax is the most effective policy for correcting the externality." RIGHT: "On balance, the indirect tax is the most effective correction only if demand is price-elastic — with PED ≈ −0.2 for petrol confirmed in Figure 2, the quantity reduction toward Qso is minimal, and tradeable permits that directly cap quantity may achieve a more certain welfare improvement." MARK COST: Level 2 evaluation maximum = max 4/6 eval = max 12/14 total Q12e. One unconditional sentence = entire eval band capped.
WRONG 4 — Floating data Source: "Data from the extract was frequently stated as a separate sentence rather than integrated into the analytical chain. This approach failed to earn Application marks." — Oct 2023 WEC11 Examiner Report
WRONG: "Chicken prices rose 147% between 2020 and 2022. This shows supply fell." RIGHT: "With chicken prices rising 147% — from $1.50 to $3.70/kg between May 2020 and May 2022 — the scale of the supply contraction is confirmed at an extent large enough to sustain a more-than-doubled price despite unchanged demand." TEST: Remove the figure → does argument still make same generic point? YES = floating = zero App.
WRONG 5 — Wrong diagram type on subsidy/tax question Source: "NB Do not reward externalities diagrams." — Jun 2024 WEC11 mark scheme (subsidy question, verbatim)
WRONG: Drawing MSC above MPC externality diagram on a BEB subsidy question. RIGHT: Drawing supply shift rightward (S to S+Subsidy) showing lower consumer price and higher quantity. MARK COST: Zero K marks for diagram. All diagram marks = zero. Cannot recover to Level 3 KAA without correct diagram.
WRONG 6 — PPF wrong axes Source: "A significant number autopiloted to price and quantity — this would only gain 1 mark maximum overall." — Oct 2024 WEC11 Examiner Report (verbatim)
WRONG: Y-axis = "Price", X-axis = "Quantity" on PPF question. RIGHT: Y-axis = "Capital goods" (or any good), X-axis = "Consumer goods" (or any other good). MARK COST: Maximum 1/4 marks regardless of diagram quality.
THE SAME ANSWER AT FOUR LEVELS — EXAMINER ANNOTATED
The question: "With reference to the extract, explain why demand for chicken is price inelastic." (4 marks, Q10 type)
LEVEL 1 (1/4) — What failing students write
[Genuine student register — wrong direction, no formula, confused terminology]
"Demand for chicken is inelastic because people need food. When the price goes up, more people want to buy it. The PED is positive. This shows the market is efficient."
Examiner annotates: Wrong direction (price up → Qd falls, not rises). "People need food" is assertion, not analysis. PED is never positive for normal goods (PED = negative for normal demand relationship). "Market is efficient" is irrelevant. → Level 1: isolated, imprecise knowledge. No chain. 1/4.
LEVEL 2 (2–3/4) — What C-grade students write
[Genuine student register — correct concept, correct direction, stops at Stage 3]
"Price elasticity of demand measures how much quantity demanded changes when price changes. [K ✓] When chicken prices rose from $1.50 to $3.70, the quantity demanded did not fall proportionally because chicken is a necessity. [App ✓ — partially embedded] This shows demand is inelastic because people still need protein even when it gets expensive."
Examiner annotates: K mark present (definition) ✓. Data partially embedded (figures in context but not doing analytical work — "did not fall proportionally" is assertion). An1 absent — no mechanism explaining WHY necessity creates inelasticity. An2 absent — no consequence stated. → Level 2: chains evident but stages omitted. 2–3/4.
ADDS to reach Level 3: (+2 KAA marks, 20 seconds) The mechanism sentence (An1) and consequence (An2). 25 seconds.
LEVEL 3 ENTRY (3–4/4) — What B-grade students write
[Correct formula, embedded data, mechanism present, consequence stated]
"Price elasticity of demand measures the responsiveness of quantity demanded to a change in price — PED = %ΔQd / %ΔP, and a value between 0 and −1 confirms inelastic demand. [K ✓] With chicken prices rising 147% — from $1.50/kg in May 2020 to $3.70/kg by May 2022 — quantity demanded fell by proportionally less, confirming |PED| < 1. [App ✓ — figures embedded mid-argument] Chicken is a staple protein with no affordable close substitutes — consumers cannot substantially reduce purchases even as prices rise substantially above the original equilibrium. [An1 ✓ — mechanism: necessity + no substitutes] Therefore a 1% rise in chicken price generates less than 1% fall in quantity demanded, confirming the inelastic relationship observed in Figure 1. [An2 ✓]"
Examiner annotates: K mark ✓. App mark ✓ (147%, $1.50, $3.70 doing analytical work — removing them weakens argument). An1 ✓ (mechanism: necessity + no substitutes). An2 ✓ (consequence stated: PED < 1 confirmed). → Level 3. 4/4.
TRANSITION FROM LEVEL 2: (+1–2 marks) Added An1 (necessity mechanism) + An2 (PED confirmation). Two sentences. 25 seconds.
LEVEL 3 TOP (4/4 with maximum depth) — What A*-grade students write
[Everything in Level 3 entry PLUS: diagram letter reference, determinant named, consequence extended]
"Price elasticity of demand measures the responsiveness of quantity demanded to a change in price — PED = %ΔQd / %ΔP, and |PED| < 1 confirms inelastic demand where percentage quantity change is smaller than percentage price change. [K ✓] With chicken prices rising 147% — from $1.50/kg to $3.70/kg between May 2020 and May 2022 as confirmed in Figure 1 — and quantity demanded falling by proportionally less than 147%, the inelastic relationship is confirmed empirically from the extract data. [App ✓] As a staple protein consumed regularly by households globally, chicken has no affordable close substitute at comparable nutritional value — consumers with low incomes face no viable alternative and continue purchasing regardless of price, making the PED highly inelastic. [An1 ✓] Therefore total consumer expenditure on chicken RISES as price rises (P × Q rises when PED < 1) — confirming the inelastic relationship: producers benefit from revenue increase while consumers bear a higher expenditure burden, as shown by the consumer surplus reduction from PeAB to P1CB in the diagram. [An2 ✓ — extended to revenue consequence]"
ADDS vs Level 3 entry: (+1 mark at Level 3 top) Extended An2 to include total expenditure consequence (P×Q rises when PED<1) and diagram letter reference. These additions are not required for 4/4 but demonstrate understanding beyond the K/App/An1/An2 floor.
EXAMINER THOUGHT PROCESS — THREE STAGES FOR EVERY RULE
For every major rule, the examiner's decision process follows three stages. Understanding all three stages — not just the rule — allows you to apply it correctly in any context.
RULE: Stage 4 earns the An2 mark
STAGE 1 — WHAT THE EXAMINER READS: "The examiner picks up a script and reads: 'Carbon emissions from chicken production harm third parties.' They note: Stage 3 endpoint. Chain stops before welfare consequence."
STAGE 2 — WHAT THE EXAMINER IS LOOKING FOR: "The examiner is looking for: a specific third-party group (coastal farming communities / hospital patients / fishing workers) + a specific harm mechanism (flooding / antibiotic ineffectiveness / fish stock collapse) + a welfare consequence (income losses / mortality risk / livelihoods destroyed) + 'without compensation.' Until all four are present, An2 is not awarded."
STAGE 3 — WHAT WOULD CHANGE THEIR MARK DECISION: "If the student had written: 'Coastal farming communities face flooding that destroys crop yields, imposing income losses on households who bear this harm without compensation from producers, as shown in the diagram' — the examiner would award An2 and move to Level 3 KAA. That sentence took 20 seconds to write."
RULE: Unconditional conclusion = Level 2 evaluation
STAGE 1 — WHAT THE EXAMINER READS: "The examiner reads: 'On balance, the indirect tax is the most effective policy for correcting the externality.' They note: unconditional. No named condition under which this conclusion fails."
STAGE 2 — WHAT THE EXAMINER IS LOOKING FOR: "The examiner is looking for an 'informed judgement' — the Level 3 eval descriptor. An informed judgement is, by definition, conditional. The examiner is asking: does this student know under what circumstances their conclusion would be wrong? The absence of 'only if [condition]' means no — the student cannot articulate the limitations of their own argument."
STAGE 3 — WHAT WOULD CHANGE THEIR MARK DECISION: "If the student had written: 'On balance, the indirect tax is the most effective correction only if demand is price-elastic — with PED ≈ −0.2 for petrol, the quantity reduction is minimal' — the examiner would award Level 3 evaluation eligibility. Three words: 'only if [condition].'"
RULE: App marks require embedded data not cited data
STAGE 1 — WHAT THE EXAMINER READS: "The examiner reads: 'Chicken prices rose 147% between 2020 and 2022. This shows supply fell.' They note: data stated as separate sentence. Not integrated into the mechanism."
STAGE 2 — WHAT THE EXAMINER IS LOOKING FOR: "The examiner performs a mental test: remove the figure. Does the argument still make the same generic point? In this case: 'Chicken prices rose. This shows supply fell.' — same generic argument. The figure was decorative, not analytical. App mark = zero."
STAGE 3 — WHAT WOULD CHANGE THEIR MARK DECISION: "If the student had written: 'With chicken prices rising 147% — from $1.50 to $3.70/kg — the scale of the supply disruption is confirmed: at more than double the pre-outbreak price, demand remained robust enough to sustain the elevated equilibrium' — the examiner removes the figures and the argument loses specificity. App mark awarded."
ECONOMIC DEPTH — WHY EACH PATTERN COSTS MARKS
Pattern 1 — Stage 3 ceiling: Students stop at "third parties are harmed" because they understand the concept but have not been trained to follow the economic logic to a specific welfare consequence. The examiner does not award An2 for awareness that harm exists — only for demonstration that the student can trace the mechanism to a specific third party's welfare outcome. This is not a knowledge gap. It is a chain discipline gap — fixable in one 20-minute drill session.
Pattern 3 — Unconditional ceiling: Students write unconditional conclusions because they confuse "making a decision" with "making an informed judgement." The Pearson descriptor specifically requires "informed" — meaning the student demonstrates awareness of the conditions under which their conclusion changes. Without "only if [named condition]," the conclusion is uninformed by definition. The entire evaluation band caps. Not just the conclusion mark — the entire AO4 band.
Pattern 4 — No diagram: Students omit the diagram because they write first and intend to add it later, then run out of time. The examiner notes diagram absence in the first 30 seconds. The Level 3 KAA gate is already closed before a word of the chains is read. The fix is a physical habit: open the answer booklet, draw the diagram, label it, then write. Never the reverse.
EXAMINER 3-STAGE — MOST EXPENSIVE ERROR: STAGE 1 — The examiner opens a Q12e script. No diagram on the page. STAGE 2 — The examiner notes: "NB Level 3 requires a diagram." Mark scheme instruction. Regardless of chain quality → Level 2 KAA maximum. The examiner reads the chains. They are excellent. Level 3 quality. But: no diagram → Level 2 ceiling confirmed. STAGE 3 — If the diagram had been drawn (2 minutes, before writing) → Level 3 KAA accessible → up to 8/8 KAA → total Q12e up to 14/14. Without: maximum 10/14. Cost: 4 marks. Time to prevent: 2 minutes.
DIAGNOSE YOUR ANSWER
The specific missing element — not a category. "Needs more analysis" is useless. "Missing Stage 4: WHO + WHAT + WELFARE in one sentence" is the diagnosis.
Use this framework after every practice attempt. The diagnosis must be SPECIFIC — not a category.
After writing your answer, ask these four questions in order:
Q1: Did my Stage 4 name WHO specifically? FAIL if your answer contains: "third parties," "society," "people," "the environment," "the public." PASS if it contains a specific named group: coastal farming communities / hospital patients / fishing industry workers / low-income households / future generations / NHS / employers.
Q2: Did my Stage 4 name WHAT the specific harm mechanism is? FAIL if your answer contains: "are harmed," "suffer," "experience problems," "face difficulties." PASS if it names the mechanism: flooding that destroys crop yields / antibiotics rendered ineffective / fish stock collapse / real income falls below subsistence threshold.
Q3: Did my Stage 4 name the WELFARE CONSEQUENCE? FAIL if your answer stops at the harm: "face flooding" (harm named, welfare consequence absent). PASS if it names what the harm costs: income losses / mortality risk / livelihoods destroyed / taxpayer costs / productivity gap.
Q4: Did my conclusion contain "only if [named condition]"? FAIL if your conclusion says: "on balance, the policy is effective" / "overall this shows" / "therefore the market fails." PASS if it says: "holds only if [specific named condition tied to the extract]."
SCORING: 4/4 pass: Level 3 KAA + Level 3 eval accessible. Strong answer. 3/4 pass: Identify the single failing question. Write that one element only. Recheck. 2/4 pass: Stage 4 or conditional eval missing. Rewrite both before attempting a new question. ≤1/4 pass: Fundamental technique gap. Complete the Chain Engine drills before continuing.
DIAGNOSE YOUR PREDICTION STRATEGY
ATTEMPT 1 — Wrong approach: "I'll revise only the most predicted topics and ignore the rest." SPECIFIC FIX: This fails for two reasons. (1) Section D is a choice — high-quality technique on any topic outperforms rushed technique on the "right" topic. (2) The examiner can test any specification topic — gap analysis gives probability, not certainty.
ATTEMPT 2 — Partial approach: "I'll revise my top 3 predicted topics deeply and do light revision on the rest." SPECIFIC FIX: Better. But "light revision" is undefined. For each topic on your secondary list: can you write Stage 4? Can you write a conditional judgement? If not → "light revision" has not achieved technique readiness.
ATTEMPT 3 — Correct approach: "I've identified my top 2 predicted topics and drilled Stage 4 + conditional judgement for each. For my secondary list, I've confirmed I can write Stage 4 and 'only if [condition]' for every topic — even if the specific content is less deep." → This is correct. Technique readiness on every topic + content depth on predicted topics = full preparation.
ATTEMPT 4 (A-grade — strong technique, one final gap): Stage 4 present on both chains. Data embedded. Conditional judgement present ("holds only if demand is price-elastic"). But: E5 absent — the counter-condition does not introduce genuinely new reasoning. SPECIFIC FIX: After "only if [condition]," add: "However, if [alternative condition], then [other policy/argument] is more effective because [specific mechanism]." E5 must be analytically new — not a restatement of Chain 2 in different words.
FOUR LEVELS — USING THIS GAP ANALYSIS (Second Subtype: After a Timed Practice)
LEVEL 1 (wrong use): "I scored 52/80. I need to revise more." → "Revise more" is not a gap analysis. 52/80 could be 44/60 technique marks + 8/20 content marks — or any other combination. Without knowing WHERE the marks were lost, revision targets nothing. (+8 marks if gaps identified specifically)
LEVEL 2 (partial use): "I scored 52/80. I lost marks on Q12e. I'll revise evaluation." → Better. Q12e identified. But: "revise evaluation" is still too broad. Was the problem the conditional judgement? Stage 4? Data embedding? Each has a different drill. (+4 marks if specific element identified)
LEVEL 3 ENTRY (correct use): "I scored 52/80. Gap analysis:
- Q12e: 8/14. KAA: Level 2 (no diagram — 4 marks lost). Eval: Level 2 (no 'only if' — 2 marks lost). Total Q12e gap: 6 marks.
- Section D: 14/20. KAA Level 3 (no P2 — 2 marks lost). Eval Level 2 (unconditional — 2 marks lost).
- Total identifiable gap: 10 marks.
- Drill priority: (1) diagram habit, (2) P2 bilateral, (3) conditional judgement." → Specific element → specific drill → specific mark gain. (+6–10 marks from targeted drilling)
LEVEL 3 TOP: Same plus: "After drilling for 48 hours — diagram habit established (5 PPF + 3 externality diagrams with axes verbally confirmed before drawing), P2 practised to 45-second target, conditional judgement to 10-second target — scored 61/80 on next practice paper. Gap reduced from 28 to 19 marks. Remaining gap: Section B timing (5 marks) and second Stage 4 chain depth (4 marks)." (Iterative improvement documented)
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READ THIS FIRST
The gap between an A and an A is approximately 7 marks on WEC11. Every one of those marks is identifiable, traceable to a specific structural habit, and fixable in under an hour of targeted drilling.*
This document diagnoses exactly where those 7 marks are being left behind. by section, by question, and by habit type — and prescribes the specific fix for each. It is a post-paper analysis tool, not a revision summary.
STEP 1 — RECORD YOUR MARKS
Complete this after self-marking with the FORGE · Self-Mark Checklist.
SECTION A — MCQ: _____ / 6
SECTION B — Short Answer: _____ / 20
Q7 Draw: _____ / 4
Q8 Draw/Explain: _____ / 4
Q9 Calculate: _____ / 4
Q10 Explain: _____ / 4
Q11 Explain: _____ / 4
SECTION C — Data Response: _____ / 34
Q12a Define: _____ / 2
Q12b Draw/Explain: _____ / 4
Q12c [6 or 8 marks]: _____ / ___
Q12d [8 or 6 marks]: _____ / ___
Q12e Discuss: _____ / 14
Q12e KAA: _____ / 8
Q12e Eval: _____ / 6
SECTION D — Essay: _____ / 20
KAA: _____ / 12
Evaluation: _____ / 8
TOTAL: _____ / 80
STEP 2 — ESTIMATED GRADE POSITION
Based on Jan 2025 and Oct 2024 boundaries — use most recent confirmed boundary for your series.
| Your mark | Estimated grade | Marks to next grade |
|---|---|---|
| 68–80 | A* | — |
| 61–67 | A | ___ marks to A* |
| 53–60 | B | ___ marks to A |
| 45–52 | C | ___ marks to B |
| 38–44 | D | ___ marks to C |
| 31–37 | E | ___ marks to D |
| 0–30 | U | ___ marks to E |
Write your target here: I need _____ more marks to reach _____.
STEP 3 — IDENTIFY YOUR FAILURE PATTERN
The gap between your current mark and your target almost always traces to one of eight patterns. Identify yours by reading down the pattern list and checking whether the description matches your paper.
PATTERN 1 — THE STAGE 3 CEILING
Symptom: Q12e KAA ≤ 6/8 despite having a diagram and extract data. Cause: Chains stop at "third parties are harmed" or "the environment is damaged" — never reaching Stage 4. Mark cost: −2 to −4 KAA marks per essay question.
Diagnose: Find your Q12e Chain 1 endpoint. Does it name a specific third-party group? Does it state the specific harm? Does it state the welfare consequence?
Fix: FORGE · Chain Completion Drill — Set 1. 25 seconds per Stage 4 sentence. Drill until automatic.
PATTERN 2 — THE MISSING P2
Symptom: Section D KAA ≤ 9/12 despite good chains. Cause: P2 (bilateral evaluation of Chain 1 before Chain 2) absent. Level 4 KAA blocked. Mark cost: −2 to −3 KAA marks per Section D essay.
Diagnose: Find the point in your Section D where Chain 1 ends. Is there any evaluation of Chain 1 before Chain 2 begins? If not — Pattern 2.
Fix: FORGE · P2 Bilateral Drill — Drills 1–5. 45 seconds each. Write P2 before Chain 2 on every essay until automatic.
PATTERN 3 — THE UNCONDITIONAL CEILING
Symptom: Q12e eval ≤ 4/6 or Section D eval ≤ 5/8. Cause: At least one conclusion stated unconditionally — "the tax is effective," "the subsidy improves welfare," "government intervention is justified." Mark cost: Caps entire eval band at Level 2 = −2 eval marks minimum.
Diagnose: Find every conclusion-style sentence in your evaluation. Does each one contain "only if [specific condition]"? Any unconditional sentence → Pattern 3.
Fix: FORGE · Conditional Judgement Drill — Rapid-fire condition bank. 10 seconds per conversion. Add "only if [condition]" to every conclusion until reflex.
PATTERN 4 — THE ABSENT DIAGRAM
Symptom: Q12e KAA ≤ 6/8, Section D KAA ≤ 9/12. Cause: No diagram drawn. Level 3 KAA blocked on both questions. Mark cost: −6 KAA marks across Section C and D combined.
Diagnose: Did you draw a diagram on Q12e before writing? On Section D before writing?
Fix: FORGE · Diagram Masterclass — Drill all 8 diagram types from memory (axes first). Then FORGE · Timed Essay Protocol — Phase 1 (draw before writing) as a physical habit.
PATTERN 5 — THE FLOATING DATA PROBLEM
Symptom: Q12c/Q12d/Q12e App marks ≤ half available. Cause: Extract figures stated as separate sentences beside the argument rather than embedded inside the mechanism. Remove the figure — the argument still works generically. Mark cost: −1 App mark per chain = −2 to −4 marks across Section C.
Diagnose: Find every sentence containing an extract figure. Remove the figure from the sentence. Does the argument still make exactly the same point? YES → the figure is floating, not embedded.
Fix: FORGE · Error Pattern Tracker — Drill C (embedding rewrite). 30 seconds per fix. Rewrite floating sentences until embedding is automatic.
PATTERN 6 — THE EVALUATION-ON-6-MARK ERROR
Symptom: Time pressure in Section C; Q12e rushed. Cause: Evaluation written on the 6-mark Q12c or Q12d. Zero marks earned. 60–90 seconds lost. Mark cost: 0 marks for the eval + opportunity cost of lost Q12e time.
Diagnose: Look at your Q12c or Q12d. Did you write "however" or "it depends"? Check the mark allocation in brackets.
Fix: Habit check only. Before every Q12c/Q12d: look at the brackets, write the mark allocation in the margin, and note "6 — STOP at Stage 4" or "8 — 2 eval sentences needed."
PATTERN 7 — THE MISSING JUDGEMENT
Symptom: Section D eval ≤ 4/8 despite evaluation present. Cause: Judgement (E1–E5) absent or unconditional. Evaluation capped at Level 2. Mark cost: −3 to −4 eval marks on Section D.
Diagnose: Does your Section D have a final judgement paragraph? Does it commit to one side (E1), give new reasoning (E2), cite the extract (E3), state "only if [condition]" (E4), and give a counter-condition (E5)?
Fix: FORGE · Conditional Judgement Drill — Sets 1–3. Write all 5 elements for each drill topic before checking the model.
PATTERN 8 — THE SECTION B TECHNIQUE DEFICIT
Symptom: Section B ≤ 14/20 across multiple papers. Cause: Repeated technical errors — PPF axes wrong (max 1/4), % sign after elasticity (−1), formula not written first (−1 K), text written on Draw question (0 marks). Mark cost: −4 to −6 marks across Section B.
Diagnose: For each Section B question, identify which specific technical rule was violated. These are habit errors, not knowledge gaps.
Fix: FORGE · Error Pattern Tracker — Drills A (diagram axes), E (elasticity formula). 5 minutes each.
STEP 4 — ANNOTATED SCRIPTS BY ERROR TYPE
SECTION B ERROR EXAMPLES
SB-1: Chain-short on Explain (3/4 instead of 4/4)
Student answer: "Price elasticity of demand is the responsiveness of quantity demanded to a change in price. When oil prices fell by 53% in Q1 2020, this shows demand for oil is inelastic."
What went wrong: App mark earned (53% embedded). K mark partial ("responsiveness" present but formula absent — partial K in examiner view). An1 missing — no mechanism explaining WHY demand is inelastic. An2 missing — no consequence stated.
What 4/4 looks like: "Price elasticity of demand measures the responsiveness of Qd to a change in price. PED = %ΔQd / %ΔP. [K ✓] The 53% fall in oil prices in Q1 2020 generated only a small reduction in Qd, confirming highly inelastic demand. [App ✓] Oil is a necessity with no close substitutes — consumers cannot significantly reduce consumption regardless of price changes. [An1 ✓] Therefore a 1% fall in oil price generates less than a 1% increase in Qd, confirming |PED| < 1. [An2 ✓]"
SB-2: Draw question — wrong axis labels (2/4 instead of 4/4)
Student answer (described): Correct diagram shape. PPF drawn correctly with outward shift. Y-axis labelled "GDP" and X-axis labelled "Real output."
What went wrong: Y-axis and X-axis both wrong. PPF axes must show two types of GOODS. "GDP" and "Real output" are macroeconomic axes — maximum 1/4.
What 4/4 looks like: Y-axis: "Capital goods" (or "Good A"). X-axis: "Consumer goods" (or "Good B"). Arrow showing outward shift. Original PPF labelled. New PPF₁ labelled. Zero text beside diagram.
SECTION C ERROR EXAMPLES
SC-1: Q12a Define — one component (1/2 instead of 2/2)
Student answer: "An externality is when there are costs or benefits to third parties."
What went wrong: Component 1 (third parties) present. Component 2 (MSC/MPC divergence or market price not reflecting social cost) absent. 1/2 maximum.
What 2/2 looks like: "An externality is a cost or benefit imposed on third parties not party to the transaction (1), causing the marginal social cost or benefit to diverge from the marginal private cost or benefit (1)."
SC-2: Q12e — no diagram, Stage 3 chains (8/14 instead of 14/14)
Student answer (described): No diagram. Two chains to Stage 3 ("third parties are harmed by carbon emissions"). Evaluation present with "it may not be effective." No "only if." No judgement.
What went wrong: No diagram → Level 2 KAA maximum (6/8). Stage 3 chains → even if diagram present, chains cap at Level 2 within KAA. "It may not be effective" → Level 1 eval (no mechanism). "No only if" → Level 2 eval maximum. Result: KAA 5/8 + Eval 3/6 = 8/14.
What 14/14 looks like: Diagram first. Both chains to Stage 4 (named third party + specific harm + welfare consequence). Both evaluations with mechanism + "only if." Judgement with all 5 elements (E1–E5). Final score: KAA 8/8 + Eval 6/6 = 14/14.
STEP 5 — YOUR PERSONALISED DRILL SCHEDULE
Based on your failure patterns, complete this schedule:
| Pattern identified | Drill to run | Time | Target papers |
|---|---|---|---|
Priority rule: Start with the pattern costing the most marks per paper. One pattern drilled to elimination before moving to the next.
REFERENCE CARD — A* GAP ANALYSIS
A* THRESHOLD: approximately 68/80 (Jan 2025)
A THRESHOLD: approximately 61/80
MOST COMMON A→A* GAPS (ranked by mark cost):
1. Stage 3 ceiling (no Stage 4): −3 marks Q12e + Section D
2. Missing P2 (Section D): −3 KAA marks
3. Unconditional conclusions: −2 eval marks per essay
4. No diagram Q12e: −4 KAA marks
5. Floating data (App not embedded): −2 marks Section C
FASTEST FIXES (marks per study hour):
1. Add "only if" to every conclusion: 30 min practice
2. Draw diagram before Q12e writing: 3-day habit
3. Stage 4 sentence per chain: FORGE · Chain Completion Drill
4. P2 before Chain 2: FORGE · P2 Bilateral Drill
5. PPF axes correct: 10 min once (never wrong again)
PATTERN → DRILL MAPPING:
P1 (Stage 3): FORGE · Chain Completion Drill
P2 (No P2): FORGE · P2 Bilateral Drill
P3 (Unconditional): FORGE · Conditional Judgement Drill
P4 (No diagram): FORGE · Diagram Masterclass
P5 (Floating data): FORGE · Error Pattern Tracker Drill C
P6 (Eval on 6-mark): Habit check — mark allocation first
P7 (No judgement): FORGE · Conditional Judgement Drill
P8 (Section B): FORGE · Error Pattern Tracker Drills A + E
→ Also read: FORGE · Self-Mark Checklist (identify errors) | FORGE · Error Pattern Tracker (drill fixes) | SIGNAL · Grade Boundary Calculator (mark targets by section)
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GAP ANALYSIS | v1.0*
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