Overview
A 7 in IB Psychology comes from one habit repeated under exam pressure: naming real studies and then using them to answer the exact question asked. Students stuck at a 5 usually know plenty of studies — they just describe them and hope the marks follow. Candidates who reach a 7 treat every study as evidence for an argument, link it explicitly to the command term, and build balanced critical thinking on top. This guide breaks down how each paper is marked and the moves that lift a script into the top band.
What a 7 actually takes
A 7 is the top grade, roughly 80%+ of scaled marks depending on the session boundaries. In Psychology it does not reward encyclopaedic recall. It rewards precision: studies with a clear aim, procedure and findings, applied directly to the question, plus critical thinking that is developed rather than bolted on. Get the [markbands](/blog/ib-markbands-explained) into your head until you can predict the level of any answer you write, then drill the two or three moves that separate your work from the band above.
The papers and exactly how they're marked
IB Psychology follows the 2019 syllabus. Paper 1 covers the three approaches — biological, cognitive and sociocultural. Paper 2 tests your chosen options. HL students sit an additional extension essay, and everyone completes an experimental Internal Assessment.
| Component | Format | Out of | What the top band needs |
|---|---|---|---|
| Paper 1 Section A | Short-answer questions (SAQs) | 9 each | A study described and explicitly linked to the question, meeting the command term |
| Paper 1 Section B | Essay / extended response (ERQ) | 22 | Research used to build the argument + developed, balanced critical thinking |
| Paper 1 HL only | HL-extension essay | 22 | Same criteria, applied to the HL extension topics |
| Paper 2 | Option essay(s), ERQ format | 22 each | Named studies used as evidence, balanced evaluation, tight focus |
| Internal Assessment | Experimental study report | criteria-marked | A sound experiment, correct stats, honest evaluation |
The ERQ criteria are the same everywhere they appear: A Focus on the question (2), B Knowledge and understanding (6), C Use of research to support the answer (6), D Critical thinking (6), E Clarity and organization (2).
The SAQ /9 formula
The SAQ band 7–9 asks for two things, and both are non-negotiable: describe a relevant study and link it explicitly to the question while meeting the command term.
Think of it as two levers. The first lever is description — a real named study with its aim, what the researchers did, and what they found. Skip the detail and you cap yourself; a vague gesture at "a study on memory" is not a described study. The second lever is the link — a sentence that connects the study back to the exact wording of the question. "Explain one effect of neurotransmission on behaviour" needs you to say how that study shows the effect, not just that the study exists.
The two things that cap marks are the two things students skip: not describing (naming a study but giving no real procedure or findings) and not linking (describing a study fully but never tying it to the question). Write to a fixed shape — brief definition, the study, the explicit link — and practise it to the minute. One well-chosen study, properly linked, beats two half-remembered ones.
The ERQ /22 — winning on criteria C and D
For the IB Diploma Programme, every essay earns marks on all five criteria, but the ones that decide whether you land a 5 or a 7 are C: Use of research and D: Critical thinking. Focus (A), knowledge (B) and clarity (E) are threshold criteria — get them right and you stay in the game, but they rarely lift you into the top band on their own.
Criterion C is about using research, not listing it. The weak essay parks two studies in the middle and moves on. The strong essay deploys each study as evidence for a specific claim: because this study found X, we can argue Y about the question. The study earns its place by advancing the argument. Two studies genuinely used will out-score four studies merely described.
Criterion D is developed, balanced critical thinking. This is where most 5s stall. It is not a single evaluation paragraph tacked on at the end; it runs through the essay. Weigh methodological strengths and limitations, consider alternative explanations, and address how far the evidence supports the claim — while keeping it balanced. A one-sided demolition of every study is as weak as no evaluation at all. Match it to the command term: "discuss" wants a genuine both-sides treatment, "evaluate" wants a reasoned judgement.
Building a bank of studies you can deploy
For the IB Diploma Programme, you cannot improvise studies in an exam, so build the bank in advance. For each study keep a one-line record: researcher and year, aim, method, key finding, one strength, one limitation, and — the part most students miss — which questions it can answer. A single well-understood study often covers several prompts across an approach.
Aim for depth over breadth: a compact set of studies you can describe and evaluate beats a long list you only half-know. Our free IB Psychology SL course and HL course link every syllabus topic to lessons, flashcards and practice tasks, so you build the bank topic by topic rather than cramming it the week before.
The HL extension
HL students answer an extra extension essay on Paper 1, marked on the same /22 criteria, drawn from three areas: the role of animal research in understanding human behaviour, the influence of cognitive processing in the digital world, and the effect of globalization on behaviour. The winning moves are identical — named studies used as evidence, balanced critical thinking — but the content is distinct, so the extension needs its own study bank rather than recycled Paper 1 material. See the [HL past papers guide](/blog/ib-psychology-hl-past-papers-guide) for level-specific practice.
Common mistakes that cap you at a 5
This section covers Common mistakes that cap you at a 5 — what IB examiners reward most often in past papers and coursework.
- Listing studies. Naming study after study without using any of them to build an argument. Criterion C rewards use, not inventory.
- Describing without linking. A perfect study description that never connects to the question — the single most common reason SAQs and ERQs stall below the top band.
- One-sided evaluation. Critical thinking that only attacks (or only praises) is not balanced, and criterion D wants balance and development.
- Bolt-on critical thinking. One evaluation paragraph at the end instead of critical thinking woven through the essay.
- Ignoring the command term. "Discuss" and "evaluate" demand different things; answering the wrong one caps focus and knowledge marks.
- Neglecting the options. Over-revising Paper 1 approaches and walking into Paper 2 underprepared.
A weekly LEARN → PRACTICE → GET-MARKED system
Protect sleep and start the IA early — it is criteria-marked and easy to leave too late. The [IB Psychology IA guide](/blog/ib-psychology-ia-guide) walks through the experimental report step by step.
- Learn one topic properly: read the lesson, then add its studies to your bank with aim, procedure, findings and a linkable one-liner. Retrieve with flashcards until recall is automatic.
- Practise under time. Write SAQs to the minute and full ERQs to a fixed plan — focus statement, study one used as evidence, study two used as evidence, balanced critical thinking throughout, conclusion. Use real IB Psychology SL past papers and the HL equivalents.
- Get marked. Self-mark against the band descriptors first, then get a second opinion on your longer answers. Log your top recurring errors and drill those next week. Read how to hit the top markbands in essays to sharpen your criterion C and D instincts.
How MarkScheme helps
Self-marking gets you far, but examiner-style feedback on extended responses is where the biggest gains hide. After a past paper or an IA section, [get an essay marked](/mark) against the same /22 criteria the IB uses, so you can see exactly where criterion C and D marks are leaking. Pair that with the free [SL](/ib/courses/psychology-sl) and [HL](/ib/courses/psychology-hl) courses and the wider [IB guides hub](/guides/ib), and the whole learn-practise-mark loop lives in one place.
Frequently asked questions
This section covers Frequently asked questions — what IB examiners reward most often in past papers and coursework.
How many studies do I need per essay?
Two studies you can both describe and evaluate usually outperform four you only mention. Depth and use beat quantity — criterion C rewards research that advances the argument.
What's the difference between an SAQ and an ERQ?
An SAQ is a short Paper 1 Section A answer marked out of 9 on describing and linking one study. An ERQ is a full essay marked out of 22 on all five criteria, where critical thinking and use of research carry the top-band marks.
Do critical thinking and evaluation mean the same thing?
Roughly yes for criterion D — but it must be developed and balanced, weighing strengths against limitations and considering alternatives, not a single one-sided paragraph at the end.
What extra do HL students do?
HL students sit an additional Paper 1 extension essay (out of 22) on animal research, cognitive processing in the digital world, or globalization, marked on the same criteria as any ERQ.
How is the IA marked?
The IA is an experimental study written up as a report and assessed against set criteria. Start it early — see the IB Psychology IA guide.