Short answer: evaluation means reaching a judgement and supporting it. A sentence like "it depends" is not evaluation. A sentence that says what it depends on, why, and which way it probably goes is. AQA's mark scheme caps essays with unsupported evaluation at Level 3, so this one skill decides whether a 25-mark answer scores in the teens or the twenties [2].
What AO4 is, and why it matters
AQA assesses A-Level Economics (7136) against four assessment objectives. Evaluation is AO4: evaluating economic arguments and using qualitative and quantitative evidence to reach informed judgements [1].
| Objective | What it rewards | Weighting, AQA 7136 |
|---|---|---|
| AO1 Knowledge | Terms, concepts, theories and models | 20–23% |
| AO2 Application | Using them in a specific context | 26–29% |
| AO3 Analysis | Explaining causes and effects step by step | 26–29% |
| AO4 Evaluation | Judging arguments with evidence | 22–25% |
Two things follow. First, knowledge is the lightest-weighted objective, so a long list of definitions cannot carry an essay. Second, evaluation is worth roughly a quarter of the whole qualification [1]. It is not a final paragraph you add if time allows.
What examiners actually reward
AQA marks 25-mark essays in five levels. The difference between the middle and the top is almost entirely about evaluation [2]:
- Level 3 (11–15 marks): some reasonable analysis, but evaluation is generally unsupported and fairly superficial.
- Level 4 (16–20 marks): focused analysis with some reasonable, supported evaluation.
- Level 5 (21–25 marks): well-supported evaluation running through the answer, and a conclusion that reaches a judgement.
The key word is supported. The mark scheme describes evaluation as judgements backed by arguments or data. A judgement with no reason attached is treated as unsupported, whatever it says [2].
Six evaluation techniques that earn marks
Each technique below turns "it depends" into a supported judgement. Use two or three per essay, attached to your analysis, not saved for the end.
- Magnitude. Ask how big the effect is. A tax on a good with price-inelastic demand changes quantity only a little, so the impact on consumption is small.
- Time period. Ask whether the short run and long run differ. Supply-side policies may cost money now and raise productive capacity only years later.
- The key assumption. Name the assumption your analysis rests on, then test it. Much of the theory assumes firms maximise profit, but many pursue growth or market share instead.
- Stakeholders. Ask who gains and who loses. A policy can help consumers and harm producers, so "is it good?" needs a "for whom?".
- Evidence. Use the data in the extract or a real example. A judgement tied to a named firm, market or figure is far stronger than a general claim.
- Prioritise and conclude. End with a judgement that ranks the factors: which matters most here, and what would change your answer.
A worked example
AQA's June 2025 Paper 1 asked students to evaluate the view that oligopolies serve society well [2]. Here is how one strong paragraph pair might look.
Analysis (AO3): Because an oligopoly is dominated by a few large firms with barriers to entry, each firm can earn supernormal profit in the long run. So the firms can afford research and development. Over time this dynamic efficiency can lower costs and improve products, which benefits consumers.
Evaluation (AO4): However, this benefit depends on competition between the firms. Where the firms compete hard on price and quality, as in markets where rivals regularly undercut each other, profits are likely to be reinvested and consumers gain. Where the firms collude, even tacitly, the profit is more likely to come from higher prices than from innovation, so consumers lose. The judgement therefore turns on the degree of competition and on how effective competition authorities are at preventing collusion. On balance, oligopolies serve society well only where that competition is real.
Notice what makes the evaluation supported. It names the condition (the degree of competition), explains why it changes the outcome, and reaches a judgement that says which way it goes.
Five common mistakes
- "It depends" with no follow-up. Always say what it depends on and why.
- Saving all evaluation for the conclusion. Level 5 needs evaluation throughout the answer [2].
- Listing points without weighing them. Five unweighed points score less than two weighed ones.
- Ignoring the extract. The data in front of you is the easiest evidence to use.
- A conclusion that repeats the essay. A conclusion should judge, not summarise.
A quick checklist before you finish
- Does every evaluation point say what it depends on, and why?
- Have you used at least one piece of evidence: data, the extract or a named example?
- Have you ranked the factors, and said which matters most?
- Does your conclusion reach a judgement that answers the exact question?
Practise the skills underneath evaluation
Evaluation only works when the analysis beneath it is secure. Our free Economics starter pack covers demand and supply, market failure and the maths you need, with practice questions.
Get the free packFor essays marked against the AO grid with written feedback, see the Exam Intensive programme.