Cambridge A-Level Psychology (9990) — past papers, mark schemes & how to mark

Cambridge Psychology (9990) is one of the most searched A-Level subjects for past papers and mark scheme help. This guide explains how the syllabus is examined, how marks are awarded, and how to turn practice into real marks — not just completed pages.

Syllabus code 9990 at a glance

Subject	Psychology
Level	A-Level
Syllabus code	9990
Typical marking	mixed (studies, application, essays)

Past papers are labelled 9990/XX where XX is the component (paper) number for that session. Always check you are practising the right component for your route.

How the papers are structured

Core studies, approaches, and applied options. Mix of short tariff and essay responses.

Download papers from Cambridge International or your school portal, then mark with the official mark scheme for that exact session and question number.

How mark schemes work for Psychology

Marks for named studies (method, finding, conclusion), application to scenarios, and evaluation of methodology/ethics.

When you self-mark, read the scheme before you look at your answer — otherwise you unconsciously accept partial credit.

Common mistakes students make on 9990

• Vague study descriptions without named researchers
• No evaluation after description
• Confusing correlation with causation in application

If the same mistake appears twice in one week of marking, it is a revision priority, not bad luck.

A practical revision plan with past papers

• Summarise each core study on one revision card
• Practice application stems from past papers
• Mark with scheme keyword lists highlighted

Rule of three: attempt → mark with scheme → rewrite the weakest part. Skipping step two is why students feel they are "doing past papers" without grades moving.

Marking homework and textbook questions

Not every question comes from a past paper. On MarkScheme, choose My question, select Psychology (9990), add the question (photo or text), upload your answer, and get Cambridge-style feedback (method marks, bands, or point marks depending on the question type).

Using MarkScheme for 9990 past papers

For real past-paper questions, use Past paper mode so we can match the official mark scheme when it is in our library. Upload clear photos of your handwriting — see our guide on photographing handwritten answers.

What to read next

• How to read a Cambridge mark scheme
• How to mark Cambridge past papers yourself
• Common mistakes when self-marking

Bottom line

9990 rewards precision against the mark scheme, not vague knowledge. Learn the language examiners use, mark honestly, and fix one repeatable error at a time — that is how A-Level Psychology scores move.