IB Psychology SL Topic 6 — Answering Exam Questions Paper 2 Exam skill ~11 min read

Writing a Strong SAQ in Paper 2

Twenty marks, four questions, all of them about a practical you ran yourself. This is the most predictable section in the entire course, and the students who do badly are almost always the ones who never wrote their practical down properly.

📘 What you need to know

Question 1: describe the method

Four marks for a concise, factual account of how you ran the study. Examiners want clear knowledge of the research method and a short explanation of how you implemented it. Four elements cover it.

Four things, one for each mark write these out once now and Question 1 is finished forever AIM what you were investigating METHOD lab experiment? survey? interview? SAMPLE how they were chosen, and who PROCEDURE what you actually did, step by step no evaluation here, and no theory describe is AO1, so accuracy and detail are the whole job state the sampling method by name, not just how many people
The sample line is worth being fussy about. “24 students obtained by opportunity sampling” scores; “some people from our class” does not.

Question 2: explain how a concept relates

Four marks. You are given, or you choose, a concept — bias, measurement, validity, reliability — and you explain how it is relevant to your practical, then justify why it matters there.

Two moves get the marks. First a clear explanation of what the concept means in your study, then a justification of why it is significant for the results you got.

A worked link: if your practical was a lab experiment, you could take measurement as the concept and explain how your standardised procedure kept the measure consistent across participants, which made your findings more reliable and more valid.

Question 3: compare and contrast

Six marks, and the command term is AO3. The question names a second method, and you must show both similarities and differences in a balanced discussion. Students routinely lose marks by giving four differences and no similarities.

Compare means the middle, contrast means the sides an answer with no overlap has only done half the question your method the other method what differs what differs what is shared in both both collect data systematically, but only one manipulates an IV that single sentence is a compare and a contrast in one line
Useful shared ground to reach for: both use systematic data collection, both need ethical approval, both raise sampling questions. Differences usually sit in control, setting and data type.

Question 4: design a new study

Six marks. You keep the same research topic and rebuild it around a different method — and it will usually be different from the one named in Question 3, so have two alternatives ready.

Examiners want a solid, workable design and evidence that you can reframe a research topic to fit a new method. If your practical was an experiment on short-term memory, you could design a questionnaire asking participants what they can recall over a short period and which techniques they use to help.

🧩 What a Question 4 design must include

  1. The new method, named clearly, and different from your practical.
  2. The same topic, reframed to suit it. Do not quietly change the research question.
  3. An aim stated in one sentence.
  4. A sample: who, how many, and by which sampling technique.
  5. A procedure: enough steps that someone else could run it.
  6. One design detail that shows judgement, such as standardised instructions, behavioural categories, or anonymity.

Worked examples

WORKED EXAMPLE

Question 3, compare and contrast

Compare and contrast the methodology of the experiment in your class practical with the methodology of an observation. [6 marks]

Similarity 1 Both collect data systematically, using a procedure agreed in advance rather than casual impressions. Similarity 2 Both can produce quantitative data, and both need the behaviour defined clearly before recording starts. Difference 1 Our experiment manipulated an IV; a naturalistic observation manipulates nothing at all. Difference 2 Our controlled setting raised internal validity but lowered realism; an observation in a natural setting does the reverse. Two of each, balanced, both methods discussed use the words “similarly” and “in contrast” — it makes the structure visible to the examiner
WORKED EXAMPLE

Question 4, design a new study

Your class practical was an experiment testing whether pictures improve word recall. Design a questionnaire study on the same topic. [6 marks]

Method and aim A questionnaire investigating which memory strategies students believe help them remember information. Sample 60 students from two year groups, obtained by opportunity sampling at lunchtime. Materials Ten closed rating-scale items on strategy use, plus two open questions on what helps them most. Procedure Anonymous, completed in one sitting, piloted on five students first to remove unclear wording. Same topic, different method, workable design the pilot and the anonymity are the details that lift this from adequate to strong

💡 Exam tip

⚠️ Common mix-up

Up next: Writing a Strong ERQ in Paper 2 — how to take a study you have never seen and pull two key concepts out of it in five minutes.

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