QCE Psychology study guide

QCE Psychology is decided by four assessments across Units 3 and 4: the IA1 data test (10%), the IA2 student experiment (20%), the IA3 research investigation (20%) and the external examination (50%). Your school sets and marks the three internal assessments and QCAA confirms them; QCAA writes and marks the two exam papers, so internal and external assessment carry exactly the same weight. Across four cohorts of subject reports QCAA has named the same short list of problems every year, and they concern how a response is built more than how much psychology it contains.

This guide describes Psychology 2025 v1.0, the current General Senior Syllabus, released January 2024 and applying to Year 11 from 2025 and Year 12 from 2026. The 2026 Year 12 cohort is the first assessed under it. That matters when you read anything else about this subject: the four subject reports published so far (2022 to 2025 cohorts) all describe assessment under the superseded Psychology 2019 v1.3 rules, so their exam and subject-matter commentary still holds, while their criterion names, mark splits and confirmation figures describe rules that have been replaced.

How the marks add up

Units 1 and 2 are formative. Nothing in them counts towards your result.

The IA1 data test is the only assessment whose paper shape is published before you sit it, because the syllabus fixes what proportion of marks tests each objective to within 2%. The IA2 student experiment asks you to modify a Unit 3 experiment and report it. The IA3 research investigation asks you to evaluate a Unit 4 claim using evidence you research. Both are marked on four criteria worth 5 marks each, and under the 2025 syllabus Communication is no longer one of them.

The exam is half of your result

Two papers, written and marked by QCAA, each with 5 minutes perusal and 90 minutes working time, covering both Units 3 and 4. A QCAA-approved graphics or scientific calculator is permitted. The specification says the papers may ask you to respond with multiple choice, single words, or sentences and paragraphs, and may ask you to calculate using algorithms or interpret unseen stimulus including graphs, tables and diagrams.

Four of the six assessment objectives are examined: describe, apply, analyse and interpret. Evaluate and investigate live in the internal assessments only.

The syllabus fixes neither the paper total nor the split between question types. This is what was actually sat:

Twenty multiple-choice marks in Paper 1 every year, and everything else short response. No extended-response section was set in any of those four years, and the 2025 specification does not name extended response among its item types.

What QCAA keeps saying, four years running

The reports are consistent about what the cohort does well: interpreting graphical and tabulated data, and describing key concepts in simple contexts. Both appear in nearly identical wording across all four years, and the 2022 and 2023 reports add recalling the findings of studies named in the subject matter.

1. Use the mark allocation to decide how much to write. Named in 2022, 2023 and 2025. The 2022 wording asks students to use the number of marks "to indicate the number of statements, cognitions or calculations required to achieve full marks". A 3-mark question is telling you it wants three things.

2. Answer the cognitive verb. The 2025 report names deduce, infer, contrast and justify as the verbs to practise responding to. This runs through every assessment in the subject, since the data test sorts its questions by objective using those same verb lists.

3. Precise technical terminology. Named in 2022 and 2024, and the 2024 report gives the example: describing concepts "with precise use of technical vocabulary from subject matter e.g. classical and operant conditioning".

4. Explain, with a specific example. The 2025 report asks for opportunities to "explain concepts outlined in the subject matter and provide specific relevant examples". Explaining without an example is the incomplete version of this.

5. Know the methodology and key findings of the named studies. Named in 2022, 2023 and 2024. The 2024 wording asks teachers to work through the required readings so students are familiar with "the general methodology and key findings of these studies".

6. In the internal assessments, everything traces to the evidence. For IA2, all four reports say improvements and extensions have to be logically derived from limitations you actually identified. For IA3, all four say findings must be extrapolated to the claim and not only to the research question.

Where the marks are actually lost

QCAA names the cognitive verb every year but never publishes a score per verb. Across 20,573 marked attempts on 398 Psychology questions on AusGrader, students average 64.8% overall. Ranked weakest first:

The verbs asking you to produce an account or a mechanism sit at the bottom; the ones asking you to recognise and label sit at the top. That is our sample reaching QCAA's finding independently, on different questions and by a different method, and explain landing last matches the 2025 report asking for exactly that skill. Several other verbs clear our sample threshold and are held out of this table on purpose: in our data they come from a small set of assignment-style items tagged with several verbs each, so they are not independent samples and cannot be read beside exam-marked responses.

The content that gives the most trouble

By topic, on the questions we hold with enough attempts to report:

Our coverage is heavily Unit 3: three of its four topics carry more than 9,000 attempts each, while the rest of Unit 4 sits in the low hundreds or below and is too thin to publish.

Learning is where our data and QCAA's agree most sharply. It is our weakest Unit 3 topic at 57.4%, and its dot points occupy three of the five weakest positions in our whole dot-point table. Comparing classical conditioning, operant conditioning and social learning theory is the single weakest, at 48.3% across 1,070 attempts, with the classical conditioning dot point at 54.2% across 3,170 and operant conditioning at 59.6% across 3,037. QCAA reached the same place from the other direction in its 2024 report, naming classical and operant conditioning as the example of content needing precise technical vocabulary.

The next weakest dot points in our data are both from brain function: describing brain function as both localised and distributed (57.3%, 1,144 attempts) and describing neurotransmission with reference to action potentials and synaptic transmission (58.2%, 2,056 attempts).

Unit 3 is brain function, sensation and perception, memory and learning. Unit 4 is social psychology, interpersonal processes, attitudes and cross-cultural psychology. Each page holds real QCAA questions with their marking criteria attached, and the QCE Psychology question bank pulls all eight together.

Do not chase a fixed grade boundary

Every report repeats the same line: the boundaries are determined by comparing results on a numeric scale to the reporting standards. The C floor has moved twice since the 2022 cohort, from 48 to 49 and then to 50, and the A floor moved from 86 to 87 after 2022. Any number copied from an older cohort is a guess about yours.

For scale, 5,888 students completed Units 3 and 4 in 2025 across 237 schools. Of that cohort 27.34% finished on an A and 48.95% on a B, 23.10% on a C, 0.61% on a D and nobody on an E. No student has received an E in any of the four years held.

Psychology is also growing quickly. Schools offering it rose from 165 in 2022 to 237 in 2025, and Units 3 and 4 completions rose from 4,176 to 5,888 over the same period. QCAA put the 2025 enrolment change at 12.67% on the prior year.

Where to start

If your next assessment is the data test, start there: it is the only paper whose spread of marks across objectives is published before you sit it, and knowing that changes what you practise. If you are partway through Unit 3, go to the student experiment guide, where 20% of the subject turns on a handful of adjectives and on whether your statistics were chosen for your data. If you are in Unit 4, the research investigation guide covers evaluating other people's evidence and extrapolating it to a claim, which nothing else in the subject asks of you. The QCE hub covers how internal and external assessment fit together across the certificate.