Edexcel IAS-Level · Analysis & Prediction

2025 Edexcel IAS-Level Psychology (XPS01) Past Paper Analysis

This examination across Units 1 and 2 of the Edexcel IAL Psychology specification presents a balanced but rigorous test. It heavily features core theoretical models, detailed study evaluations, and an exceptionally high concentration of mathematical and research methods skills, culminating in a highly synoptic 16-mark scenario essay.

Updated: 12 Jun 2026

Analysis Sample paper

Difficulty 3.5/5

Total marks

160

Duration

210 mins

Most tested

Research Methods, Practical Investigations and Statistical Analyses

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 I: Psychological skills · 53 marksTopic C: Biological psychology · 37 marksTopic B: Cognitive psychology · 30 marks

Difficulty Verdict

The January 2025 series for IAL Psychology presents a moderately challenging hurdle for students, primarily due to the heavy integration of Research Methods (AO2/AO3 skills) and complex mathematical calculations across both Unit 1 and Unit 2. While the recall elements of core theories (such as the Multi-Store Model and Social Learning Theory) are accessible, the application and extended evaluation questions demand high-level analytical skills.

Where the Marks Are

A staggering portion of the total credit across these units rests on Psychological Skills. Between statistical calculations (Spearman's Rank, ratios, percentages), drawing bar charts, and explaining practical investigation designs, students who treat research methods as a minor sub-topic will severely limit their grade potential. Additionally, high-mark essays (the 12-mark evaluation of Bartlett and the 16-mark synoptic essay on Benjamin's behaviour) make up a significant portion of the total paper weighting.

Examiner Pitfalls & Lost Marks

Hypothesis Operationalisation: Students often lose easy marks by failing to operationalise both variables completely. Simply stating 'exercise' and 'sleep' is insufficient; they must specify 'average hours of exercise per week' and 'average hours of sleep per night'.
Mathematical Rounding & Simplification: Ratios not converted to their lowest terms (e.g., in Q9b) or incomplete working out in the Spearman's rank table are common areas of dropped marks.
Generic Essay Blocks: In the 16-marker (Q12) and 12-markers (Q11), candidates frequently copy-paste generic evaluation points without weaving in the specific details of the scenario (e.g., Benjamin's aggression at home versus at the theatre) or the specific methodology of the chosen study.

Success Strategy

To master upcoming series, students must treat mathematical skills as core psychology content. Practise manual calculation of standard statistics (mean, median, Spearman's Rank) and master the precise steps of statistical decision-making (comparing calculated values to critical value tables). For extended essays, practice the PEEL structure with a strict rule: every 'Point' must directly address the scenario character or study context.

Future Predictions

With Moscovici and Bartlett heavily featured in Unit 1, expect upcoming papers to pivot toward Milgram's variation studies or Sherif's Robbers Cave study. Similarly, because this series heavily leveraged Social Learning Theory and Freud's psychosexual stages, we predict a strong return of structured questions focusing on Classical Conditioning (Pavlov) and Operant Conditioning (Skinner) in the next cycle.

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 Answer (1-4 Marks)56 marks · 22 questions
Structured Scenario / RM Calculations24 marks · 6 questions
Medium Essays (8 Marks)40 marks · 5 questions
Extended Essays (12-16 Marks)40 marks · 3 questions

Mark accessibility

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

75%within easy or medium reach

easy: 50 marksmedium: 70 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.

Research Methods & Statistical Significance

53 marks · Difficulty 2.8 · recurrence 5%

Cognitive Models of Memory (Working Memory Model / Multi-store Model)

12 marks · Difficulty 2.2 · recurrence 5%

Biological Explanations of Aggression (Hormones & Brain Structures)

12 marks · Difficulty 3.2 · recurrence 4%

Social Power & Obedience Theories

11 marks · Difficulty 2 · recurrence 4%

Classic and Contemporary Study Evaluations

38 marks · Difficulty 4.2 · recurrence 5%

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.

Social Psychology Classic Study (Milgram's Variations / Sherif's Robbers Cave)90%

As Moscovici featured as this paper's core Social study, Milgram's work or Sherif's classic study are prime candidates to rotate back into focus for the upcoming series.

Learning Theories: Classical and Operant Conditioning85%

Unit 2 highly prioritized Social Learning Theory and Freud's psychosexual developmental stages, leaving Pavlovian and Skinnerian core principles overdue for structured evaluation.

Cognitive Psychology Contemporary Study (Schmolck et al.)80%

Extended evaluation focused on Bartlett's classic study this round, indicating that cognitive contemporary studies are highly likely to take the essay spotlight in the next exam cycle.

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

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)

Examiner insights

Official report

Common pitfalls

Failing to fully operationalise hypotheses (e.g. missing units or precise measurements like 'hours per week').
Dropping marks on basic ratio simplifications or leaving out calculations steps when completing statistics tables like Spearman's Rank.
Relying on generic evaluation clichés for classic and contemporary studies instead of commenting on specific methodological flaws unique to those designs.

Misconceptions

Confusing different classifications of social power (e.g. legitimate vs expert power) when explaining scenario behavior.
Believing that case studies like HM are completely generalisable, or failing to differentiate the unique roles of STM and LTM in memory store questions.

Where marks are lost

In the synoptic 16-marker, candidates often write separate, disjointed paragraphs about genes and Freud instead of integrating them structurally around the scenario client (Benjamin).
Failing to explicitly link practical investigation strengths or weaknesses back to their own student practical context.

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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