Edexcel IAS-Level · Analysis & Prediction

2026 Edexcel IAS-Level Psychology (XPS01) Past Paper Analysis

The January 2026 International AS Level Psychology examinations (Unit 1 and Unit 2) presented a balanced assessment with robust testing of both quantitative research skills (such as standard deviation and Spearman's rank calculations) and core theoretical concepts. Evaluative essays on Asch, reconstructive memory, the multi-store model, and social learning theory demanded strong context integration.

Updated: 12 Jun 2026

Analysis Sample paper

Difficulty 3.0/5

Total marks

160

Duration

210 mins

Most tested

Topic D: Learning theories and development

Paper breakdown

WPS01/01: Unit 1 - Social and Cognitive Psychology: 64 marks · 90 minsWPS02/01: Unit 2 - Biological Psychology, Learning Theories and Development: 96 marks · 120 mins

Top chapters

Topic D: Learning theories and development · 54 marksTopic C: Biological psychology · 42 marksTopic B: Cognitive psychology · 38 marksTopic A: Social psychology · 26 marks

Difficulty Verdict: Balanced but Metrologically Demanding

The January 2026 series for the International Advanced Subsidiary (IAS) Psychology cash-in (XPS01) offered a well-calibrated and predictable spread of topics. It maintained a moderate difficulty index (3 out of 5), rewarding students who combined precise memory of core theories with strong application and computational rigor. While the recall requirements for theories like Asch's variations or systematic desensitisation were standard, the differentiation occurred in the high-tariff 12 and 16-mark essays, and the challenging multi-step statistical calculations.

Where the Marks are Found

Marks on these papers are heavily distributed across three areas: AO1 (Knowledge and Understanding), AO2 (Application to Context), and AO3 (Analysis and Evaluation). The calculation questions (such as finding the mean to two decimal places, completing standard deviation tables, and Spearman's rank coefficients) represent a vital 12 marks. These are highly accessible for students who show complete step-by-step working. In the extended responses, the top levels are reserved for those who achieve an equal balance of detailed descriptive points and well-evidenced evaluative chains, rather than writing long, unstructured paragraphs of pure description.

Examiner Pitfalls & Lost Marks

A major area of lost marks in this series was weak operationalisation of hypotheses. Many candidates failed to state both levels of the Independent Variable (IV) or fully specify the Dependent Variable (DV) in relation to the scenario (e.g., Luis's age groups and parking compliance). Additionally, in calculations, simple errors like omitting negative signs in the \((x - \bar{x})\) columns of standard deviation tables or failing to round values to the required decimal places (such as leaving 13.777... instead of 13.78) cost easy marks. In essays like the 16-marker on Antoni, candidates often fell into the trap of writing general biological descriptions without linking the behavior back to the specific context of head-tackling and father-role modeling.

Strategy for Success

Master the Maths: Always show your full workings. The formula sheet is provided, but practice is essential to avoid simple arithmetic slips under pressure.
Deconstruct the Essay Prompts: For any question containing 'Evaluate' or 'Discuss', ensure you spend equal time outlining the theory (AO1) and evaluating its validity, reliability, or applications (AO3), linked back to any provided scenario (AO2).
Practice Scenario Mapping: When a scenario is presented, highlight key terms and explicitly write them into your evaluation points to guarantee AO2 marks.

Upcoming Series Predictions

With Topic B (Cognitive Psychology) focusing on the multi-store model (MSM) and reconstructive memory in this set, future papers are highly likely to test the Working Memory Model (WMM) in a larger-tariff essay format. In Topic D (Learning Theories), classical conditioning and operant conditioning was tested in shorter sub-questions, meaning social learning theory (SLT) or contemporary studies (like Prot or Bastian) are overdue for a major 12-mark 'to what extent' discussion.

Charts

Marks by chapter

See where the marks were concentrated so revision time goes to the highest-value topics.

Question type mix

Compare the mark share of each paper section and question type.

Short Answer76 marks · 30 questions
Extended Response / Essay72 marks · 7 questions
Mathematical / Calculations12 marks · 7 questions

Mark accessibility

Estimate which marks were basic, mid-level, or high-difficulty.

75%within easy or medium reach

easy: 45 marksmedium: 75 markshard: 40 marks

Difficulty trend

Compare difficulty across recent years.

Command word frequency

Spot common command words so answers match the expected response style.

Skill weighting

Shows the skill mix this paper tested most heavily.

Study ROI

Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.

Topic D: Learning theories and development

54 marks · Difficulty 2.5 · recurrence 100%

Topic A: Social psychology

26 marks · Difficulty 2.2 · recurrence 100%

Topic B: Cognitive psychology

38 marks · Difficulty 2.8 · recurrence 100%

Topic C: Biological psychology

42 marks · Difficulty 3.5 · recurrence 100%

Time vs marks

Compare marks with suggested time allocation to plan exam pacing.

marksmins

Next-year prediction

Topics worth watching next year, with the reason shown directly below each bar.

Working Memory Model (WMM) Extended Evaluation85%

Only short-answer strengths were tested in this set, meaning a high-tariff comparative essay between MSM and WMM is highly overdue for Unit 1 Section C.

Classic Studies Evaluation (e.g., Watson and Rayner / Pavlov)80%

With contemporary studies (Prot / Bastian) tested in Unit 2, a focus on the evaluation of key classical learning studies is highly anticipated.

Milgram's Agency Theory of Obedience78%

Social power theory was tested in Section A. Milgram's agency theory is heavily favored in alternating series and should reappear in upcoming papers.

Cumulative marks ladder

The line is your running mark total question by question; dashed lines are the estimated grade cut-offs. See which question the line crosses your target grade at, so you know how far you must answer cleanly and which questions decide a band.

Topic-year heatmap

Compare topic weight by year to spot recurring and returning areas.

Jan 2024

Jan 2025

Jan 2026

Topic A: Social psychology

Topic B: Cognitive psychology

Topic C: Biological psychology

Topic D: Learning theories and development

Topic I: Psychological skills

Topic I: Psychological skills (Research Methods)

Topic E: Developmental psychology

Topic F: Criminological psychology

Topic G: Health psychology

Topic H: Clinical psychology

Examiner insights

Official report

Common pitfalls

Failing to fully operationalise research hypotheses. Candidates often generalise instead of linking specifically to the age brackets and target behaviors mentioned in the text.
Ignoring mathematical layout guidelines, such as writing down full calculations for standard deviation tables or omitting the negative sign in the raw differences, which leads to computational confusion.
Failing to answer research method 'improvement' questions within context; writing generic improvements like 'increase sample size' rather than identifying specific situational enhancements.

Misconceptions

Confusing Social Power Theory with Milgram's Agency Theory, particularly mixing up 'expert power' with the 'agentic state'.
Thinking that independent groups designs are weaker because they lack control, rather than specifically pointing out participant variables as the primary confounding factor.
Subjective bias in psychoanalysis evaluation; many students describe the unconscious mind without evaluating why its lack of observability lowers the scientific credibility of the therapy.

Where marks are lost

Failing to match the required decimal places in calculations (e.g., not rounding the mean word recall to two decimal places, or failing to report the ratio in its lowest simplified form).
Writing descriptive-only essays for 'Evaluate' command words. Top marks are restricted when AO1 vastly outweighs AO3 evaluation chains.
Neglecting context markers in application essays (e.g., in the Ashvi revision scenario, failing to tie the distraction of mobile phones directly to Peterson & Peterson's distractor task).

Estimated grade cut-off

Updated: 12 Jun 2026

Source: Pearson Edexcel International A Level grade boundaries (UMS)

Level	Mark	Percentage
A	—	80%
B	—	70%
C	—	60%
D	—	50%
E	—	40%

Official grade boundaries published by Pearson Edexcel International A Level grade boundaries (UMS).

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