Edexcel IAL Psychology Past Papers & Mark Schemes (YPS01) – Updated 2026
Updated: Sep 3
Access Edexcel IAL Psychology (YPS01) past papers and mark schemes for Units 1–4, with exclusive teacher tips and guidance for the updated 2026 specification.
Past Papers
Download IAL Psychology past papers and mark schemes to practice effectively
Examiner Tips
Understand what IAL Psychology teachers look for and how to earn top marks
Edexcel IAL Psychology June 2026 Past Papers & Mark Schemes
2026 Edexcel IAL Psychology (June) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Edexcel IAL Psychology January 2026 Past Papers & Mark Schemes
2026 Edexcel IAL Psychology (January) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Edexcel IAL Psychology January 2025 Past Papers & Mark Schemes
2025 Edexcel IAL Psychology (January) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Edexcel IAL Psychology June 2024 Past Papers & Mark Schemes
2024 Edexcel IAL Psychology (June) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Edexcel IAL Psychology January 2024 Past Papers & Mark Schemes
2024 Edexcel IAL Psychology (January) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Edexcel IAL Psychology June 2023 Past Papers & Mark Schemes
2023 Edexcel IAL Psychology (June) | Downloads | |
Unit 1: Social and Cognitive Psychology (WPS01/01) | ||
Unit 2: Biological Psychology, Learning Theories and Development (WPS02/01) | ||
Unit 3: Applications of Psychology (WPS03/01) | ||
Unit 4: Clinical Psychology and Psychological Skills (WPS04/01) | ||
Tip 1: Generic evaluation earns generic marks
Saying a study is reliable because it is standardised is a starting point, not an evaluation. The examiner already knows that standardisation supports reliability — what they are looking for is evidence that you understand how that applies to this specific study.
Every AO3 point needs two things beyond the initial claim: a specific procedural detail from the study that supports it, and a consequence that explains why it matters. "Milgram's study had high reliability because the script read to each participant was identical, meaning the procedure could be replicated under the same conditions and produce consistent results" is a complete evaluative point. "The study is reliable because it was standardised" is not. The detail and the consequence are where the marks are — the opening claim is just the signpost.
Tip 2: Using a character's name is not the same as applying the scenario
In scenario-based questions, simply mentioning the character's name alongside a psychological term does not constitute application. The examiner needs to see the psychological concept doing explanatory work on the specific situation described.
Do not write: "Korie's visuo-spatial sketchpad was being used." Do write: "Korie's visuo-spatial sketchpad was occupied processing the spatial information from the television programme, which meant he had no remaining capacity to notice the open cupboard door in his peripheral environment." The second version uses the scenario to explain the psychology, rather than using the psychology as a label for the scenario. That distinction is exactly what the AO2 marks are designed to reward.
Tip 3: An improvement is a solution, not a restated problem
When a question asks you to suggest an improvement, the answer must describe a positive change — not identify what was wrong. Describing a weakness is AO3. Converting it into a specific, actionable change is what the improvement question is testing.
The structure to follow is: name the change, explain precisely what it involves, and justify why it makes the study better. "The study could use stratified sampling instead of opportunity sampling, ensuring each age group and gender is represented in proportion to the target population, which would increase the representativeness of the findings and strengthen the ability to generalise the conclusions." That answer proposes something concrete, describes how it works, and explains the benefit. Stopping at "the sampling method was not representative" answers a different question entirely.
Tip 4: The command term tells you exactly how much to write and at what depth
Reading the command term before planning your answer is not optional — it defines the entire nature of the response required. A "state" question wants a brief, accurate point with no development. An "explain" question requires that point to be followed by a justification or example that shows why or how. An "evaluate" question requires a balanced argument that weighs evidence on both sides and reaches a supported judgement.
The most costly version of this mistake is writing a description in response to an "explain" question. The description may be perfectly accurate, but without the AO3 justification — the because, the consequence, the exemplification — it cannot reach full marks. Before writing a single word, identify the command term, decide what it demands, and structure your response accordingly.
Tip 5: Vague approximations of key studies will not reach the higher mark bands
"Studies in detail" questions mean exactly that. Examiners expect precise figures — sample sizes, specific conditions, exact percentages, named variations — not general accounts of what a study roughly involved.
For Milgram, this means knowing the specific obedience rates across variations, not just that "most people obeyed." For Experiment 13, the figure is 65% obedience to 450V in the baseline condition. For Yi Huang et al., it means knowing the sample demographics and specific findings rather than a broad summary of the conclusion. Vague answers like "most participants" or "a high percentage" signal to the examiner that the detail is not there, and the marks reflect that. Build a revision document of exact figures for every key study and memorise them precisely.
Tip 6: Mathematical questions reward shown working even when the final answer is wrong
Calculation questions in Psychology are marked for method as well as outcome. A wrong final answer with clear, correct working can still earn partial credit. A wrong final answer with no working earns nothing.
Read any mathematical instruction in the question twice before writing your answer — rounding requirements, ratio format, units, and decimal places are all specified for a reason and failing to follow them loses marks on presentation alone. Show every stage of your calculation, label what each figure represents, and state your final answer clearly with the correct format. The working is not supplementary — it is part of the answer.
Tip 7: Balance AO1 and AO3 in extended responses
In 8-mark and 12-mark evaluate questions, the marks are divided between knowledge and evaluation — roughly equally. A response that is almost entirely descriptive has used all its words on half the available marks. A response that jumps straight to evaluation without establishing the knowledge base is building an argument on an unstated foundation.
Use the mark allocation as a planning tool. In a 12-mark question, aim for approximately six marks of accurate, well-organised AO1 and six marks of developed, evidence-based AO3. Write your plan before you begin, allocate your points across both assessment objectives, and check the balance before you start writing. If your plan has four AO1 points and one AO3 point, rebalance it before a single word goes on the page.
Tip 8: A list of pros and cons is not a chain of reasoning
High-mark questions reward logical development — the kind of answer where each point builds on the one before it and the conclusion follows necessarily from the argument rather than appearing as a separate paragraph stapled to the end.
A weak chain looks like this: strength, weakness, strength, weakness, conclusion. A strong chain looks like this: a claim supported by specific evidence, developed with a consequence, challenged by a competing study or argument, weighed against the first point, and resolved into a nuanced judgement that accounts for both sides. The difference is not more content — it is more connection between the content already there. Use phrases like "however, this is complicated by," "this is further supported by," and "on balance, therefore" to build the logical flow rather than listing points independently.
Tip 9: The MSM and WMM are answering different questions — keep them separate
The Multi-Store Model describes memory as a linear sequence of three stores — sensory memory, short-term memory, and long-term memory — and focuses on how information passes between them through attention and rehearsal. It is a structural model concerned with where information is held.
The Working Memory Model is not a replacement for the MSM in its entirety. It zooms in specifically on the short-term memory component and explains its internal structure through four components: the central executive, the phonological loop, the visuo-spatial sketchpad, and the episodic buffer. It is a process model concerned with how information is actively manipulated in the moment.
The confusion between the episodic buffer and the central executive is particularly common and particularly costly in detail questions. The central executive is the supervisory component that directs attention and coordinates the slave systems — it does not store information. The episodic buffer is the component that integrates information from the other slave systems and from long-term memory into a unified, temporary representation. They have distinct roles, and the exam will test whether you know the difference.
Has the Edexcel IAL Psychology specification changed for the 2027 examinations?
Yes, but the changes are minor and were introduced from the January 2026 series onwards. Students sitting 2027 papers will be assessed under this updated specification.
Two units are affected:
Unit 2 (Biological Psychology, Learning Theories and Development): The assessment of the Psychodynamic approach has been modified to give teachers greater flexibility and to avoid Freudian content considered culturally sensitive in certain regions.
Unit 3 (Applications of Psychology): A minor structural update affects one 8-mark question, providing clearer guidance around the synoptic requirements of the upper-level units (Units 3 and 4).
What hasn't changed
Timing and overall structure for IAL remain standard. For anyone preparing resources or mock papers for 2027, make sure you're working from the updated Sample Assessment Materials (SAMs) published by Pearson, which reflect these Unit 2 and Unit 3 adjustments — older materials won't account for these changes.
When are the Edexcel IAL Psychology exams held, and what are the upcoming dates?
IAL Psychology is available across all three of Edexcel's annual series — October, January, and May/June — so there are multiple opportunities throughout the year.
Upcoming windows:
October 2026: The next immediate sitting, opening in early October. All units are available.
January 2027: The winter sitting, running in the first weeks of the new year.
May/June 2027: The summer series, with provisional dates already mapped:
Unit 1 (Social and Cognitive Psychology): Tuesday, 4 May 2027 — Morning
Unit 2 (Biological Psychology, Learning Theories & Development): Friday, 14 May 2027 — Morning
Units 3 and 4 follow in the subsequent weeks of the May/June timetable
For curriculum planning or resit scheduling, all three windows are viable — Edexcel makes all Psychology units available across every series.
How much harder is Edexcel IAL Psychology compared to GCSE/IGCSE/O Level?
It's a significant step up — not so much in the concepts themselves, but in the precision of thinking and the weight placed on critical evaluation over simple recall.
From knowledge to evaluation: At GCSE, describing a study accurately (aim, method, results) scores well because the marks sit heavily in AO1 (knowledge). At IAL, knowing the study is just the entry fee. The bulk of marks shift to AO3 — you must critically analyse methodology, ethics, generalisability, and cultural validity, then weigh competing theories in a structured argument.
Essay demands change completely: A long GCSE answer might be 6–9 marks with heavy scaffolding. IAL hits you with command words like "Evaluate..." (up to 16 marks) and "To what extent..." — these require balanced, nuanced essays where you don't just list pros and cons, but argue which points carry more weight and why.
The synoptic burden of Unit 4: Unlike GCSE where topics stay largely compartmentalised, Unit 4 (Clinical Psychology and Psychological Skills) is a synoptic paper. You must actively connect concepts across the entire course — linking a biological concept from Unit 2 with a social concept from Unit 1 to address a clinical issue, for example.
Genuine scientific and mathematical rigour: Many students expect psychology to be a humanities subject and are caught off guard. IAL requires a solid grasp of inferential statistics — knowing not just what a mean is, but when to apply tests like Mann-Whitney U, Wilcoxon, or Chi-Squared, and how to interpret critical value tables. The biological content goes deep into synaptic transmission, CNS functioning, and brain lateralisation.
The content itself is genuinely engaging — criminological psychology, clinical disorders, social influence — and the jump is entirely manageable. The shock for most students isn't the ideas; it's the volume of content and the precision required in exam technique. The transition from memorising facts to constructing evidence-backed arguments is the real challenge to master.