Verdict: A Balanced Test of Precision and Methodological Depth

The October/November 2023 series for Cambridge International AS & A Level Psychology (9990) presents a solid moderate-to-high difficulty (3/5 stars). While the papers adhere strictly to the structural blueprint, success hinges on candidates' ability to recall fine-grained details of core studies and demonstrate highly contextualized methodological application in Paper 2.

Where the Marks Were Won and Lost

In Paper 12 (Approaches, Issues, and Debates), high-achieving candidates secured straightforward recall marks on short-answer questions, such as naming the Autism Quotient (AQ) as the inverse correlation measure in Baron-Cohen et al., and describing the classic classroom button-spill incident in Saavedra and Silverman. However, significant mark loss occurred on questions demanding precise backgrounds and procedures:

  • Background Confusion: For Andrade (doodling), many candidates described what occurred during the study rather than outlining the theoretical background (e.g., maintaining arousal, daydreaming, and cognitive resource allocation) prior to the study.
  • Model vs. Victim: In Piliavin et al., examiners flagged a common error where candidates outlined features of the victim (e.g., smelling of alcohol) instead of the models (e.g., all male, white, casually dressed, aged 24–29).
  • Ethics Pitfalls: Q9(b) on Schachter and Singer revealed that many students still struggle to differentiate between privacy (the right to keep personal details private) and confidentiality (the non-disclosure of identifiable data).

Paper 22 Key Methodological Obstacles

Paper 22 (Research Methods) was a true test of experimental design hygiene. While the 10-mark design question (Sara's IQ vs. concentration experiment) was generally accessible, candidates lost marks by failing to clearly operationalize the independent variable (e.g., setting a specific cut-off score of 140 for high/low IQ) and the dependent variable (how concentration was explicitly measured).
Furthermore, the following recurring errors were highlighted by examiners:

  • Animal Welfare: In Q2, some candidates made extreme claims that anesthesia and euthanasia are 'unethical and should never be used,' neglecting their proper therapeutic definition in minimizing distress.
  • Graphing Misconceptions: In Q9(c), several candidates drew bar charts or scatter plots instead of a smooth, symmetrical bell-shaped curve representing a normal distribution, often failing to label 'Frequency' on the y-axis and 'Shyness' on the x-axis.
  • Circular Definitions: Defining 'random sampling' as 'selecting participants randomly' without explaining the specific mechanism (e.g., assigning numbers and drawing names from a hat) failed to score full marks.

Strategic Preparation and Predictions

To maximize scores in future series, candidates must master the GRAVE evaluation framework (Generalizability, Reliability, Application, Validity, Ethics) with at least two specific core study examples for every evaluative point. In Paper 2 Section C, always crosscheck your practical weaknesses against the question's exclusions; mentioning ethics or sampling when explicitly forbidden results in a score of zero for that part.

Looking ahead, several core studies that were under-represented or tested purely on a conceptual level in this series (such as Canli et al. and Laney et al.) are prime candidates for high-tariff procedural or results-focused questions in upcoming examinations.