IB Psychology Paper 2 Tips and Strategies (Updated for 2027)
IB Psychology has two externally assessed papers for both SL and HL students, in addition to the Internal Assessment. Rather than the previous assessment of essay-writing skills based on the optional topics, IB Psychology Paper 2 has become an assessment of candidates’ understanding of research methodology.
Both SL and HL students in IB Psychology sit the same Paper 2, which runs for 1.5 hours (90 minutes), and is worth 35 marks. In Section A, the focus is on the evaluation of the student’s own class practical experiments, whereas Section B requires candidates to engage in concept-based evaluation of an unseen research study.
In this post, we will break down the significant changes to Paper 2, and how assessment candidates for 2027 onwards can succeed in IB Psychology Paper 2. This includes the structure of the paper, the six key concepts, each section in detail, and outlining effective preparation strategies.
What Changed in IB Psychology Paper 2
There have been significant changes to the IB Psychology syllabus for the 2027 assessment. IB Psychology students who are aiming to score 6s and 7s in the subject need to be fully aware of these, and how to navigate these changes over the course of their exams.
Under the previous syllabus, Paper 2 in IB Psychology was essay-based, and covered four optional topics (human relationships, abnormal psychology, developmental psychology, and health psychology). However, these options no longer exist as their own paper, instead being covered as ‘Contexts’ within Paper 1 (health and well-being, human development, human relationships, learning and cognition).
IB Psychology Paper 2 is now focused on research methodology and psychological concepts as they are applied in research contexts. Candidates are expected to have a well-developed understanding of research methods and their application within the context of psychology experiments. This shift is emblematic of the new syllabus’ focus on concepts, content and contexts as an integrated framework, rather than discrete options.
The Six Key Concepts in IB Psychology Paper 2
The IB Psychology course, from first assessment in 2027 onwards, is built around six key concepts: bias, causality, change, measurement, perspective, and responsibility. It’s important that IB Psychology learners fully understand each of these concepts, and the ways in which they are distinct.
Indeed, these concepts form the lens through which IB candidates evaluate research across both Section A and B of Paper 2.
In Section A, the examiner will ask students to explain or apply specific concepts to their own class practicals.
Meanwhile, Section B explicitly asks IB Psychology candidates to discuss an unseen study using two or more of these concepts.
Here are some brief definitions of each concept, per the IB Psychology syllabus:
Bias: a tendency to perceive information through a cognitive filter based on experience and preference.
Related terms include: researcher bias, participant bias, gender bias, cultural bias, sampling techniques, determinism, credibility, positivism
Causality: examining the relationship between variables with the goal of determining cause-and-effect.
Related terms include: reductionism, correlation vs causation, validity, controls, statistical significance, complexity, agency
Change: this tracks whether we have free will over our behaviour, or if the behaviours that humans exhibit are determined by other factors. This includes both gradual and sudden change.
Related terms include: barriers to change, prevalence, intervention and promotion strategies, effectiveness of treatment, development and maturation, determinism
Measurement: this refers to the ways in which psychologists are able to observe and objectively measure human behaviour—a key challenge of the subject.
Related terms include: choice of research method, constructs and variables, types of data, statistical significance, brain imaging, interpretive approaches
Perspective: acknowledging the fact that there are many elements that impact human behaviour, from biological, to cognitive, to sociocultural factors. Psychologists aim to use a multi-perspective approach to understanding human behaviour.
Related terms include: psychological theories, deductive and inductive research methods, emic and etic perspectives, Indigenous perspectives, alternative explanations
Responsibility: in the context of psychological research, this often refers to the obligation of scientists to act ethically in all experiments, whether using humans or animals.
Related terms include: ethical standards, use of animals/children, socially sensitive issues, stigma, publication of findings.
It’s important to note that related terms connected to each concept will be accepted in the exam, however candidates are expected to clearly justify the link.
The Structure of IB Psychology Paper 2
SL |
HL | |
|---|---|---|
Duration |
1.5 hours (90 minutes) |
1.5 hours (90 minutes) |
Total marks |
35 marks | 35 marks |
Weighting |
35% | 35% |
Paper Format |
Section A: class practicals Section B: unseen research study | Section A: class practicals
Section B: unseen research study
|
In Section A, IB Psychology students respond to questions based on their class practicals. These are worth 20 marks total, split across 4 questions. Questions 1 and 2 are both worth 4 marks, while 3 and 4 are worth 6 marks each.
Section B is a single question that requires the evaluation of an unseen research study using two or more of the six key concepts outlined in the previous section. This is worth a total of 15 marks. Both sections are compulsory for SL and HL students, with no question choice available for Paper 2.
Section A: Class Practicals Questions
IB Psychology Paper 2’s Section A consists of four compulsory questions, all drawn from the student’s own in-class practicals. Over the course of the questions, students evaluate their practicals through the lens of the four research methods covered: experiment, observation, interview/focus group, and survey/questionnaire.
The four questions, regardless of the class practical being discussed, follow this format:
Describe your use of a specified research method in your practical.
Explain a specified key concept in relation to your class practical.
Compare and contrast the research method used in your class practical with a specified, alternative research method.
Design a study using a specified research method to investigate the same topic covered in the class practical.
As can be seen from the above, the focus of Section A is on the research method that was employed, rather than the context in which the practical was conducted. Students should stay very focused on this aspect of each question to support strong responses.
In terms of content knowledge, candidates should know 3 to 5 characteristics of each research method, as this will give them adequate material, no matter which of the 4 questions the research method is associated with. As for the six key concepts, IB Psychology students should understand them well enough to link them to any method, as required in question 2.
Section B: Unseen Research Study Evaluation
In Section B of IB Psychology Paper 2, students receive a summary of a research study from one of the four contexts. Students are then asked to discuss the study with reference to two of more of the six key concepts. This question is worth 15 marks.
As the study is unseen, students cannot prepare for the specific content in this section, only how to apply the concepts to any study encountered.
High-scorers are able to define each concept clearly, and apply it consistently to specific details from the study. If a candidate is aiming for the top mark bands, they should maintain a balanced discussion throughout their response, and support this through accurate psychological terminology. Each link between the concepts and source material must be specific, relevant and well-developed. This means that students should avoid making generic claims that apply to any psychological study.
Ultimately, IB students should practice identifying which concepts apply most effectively to different study designs. As an example, bias and measurement can be useful when discussing experimental designs, while causality and responsibility might be used with observational research.
How to Prepare for IB Psychology Paper 2
To best prepare for IB Psychology Paper 2, IB candidates should aim to master the research methods. This means knowing the key characteristics, strengths, and limitations of each method, and understanding how the research methods can be compared and contrasted. After all, the exam can ask IB learners to compare any two experiments, observations, interviews/focus groups, and surveys/questionnaires.
Next, students should aim to master all 6 of the key concepts. Make sure that each concept is defined precisely through applying it to unfamiliar studies.
IB candidates should review all class practicals thoroughly. Take extensive notes throughout each of the practicals, prioritising the procedures, the method, topic and the application of concepts.
Question 4 of Section A always asks students to design an alternative study on the same topic, practicing valid research design under efficient timed conditions is worth doing.
Regarding exam timings, it is recommended to keep to 40 minutes in Section A, and 50 minutes in Section B.
Tips for IB Psychology Paper 2
When presented with an unseen study in Psychology Paper 2, it’s important to read it carefully before selecting two concepts to apply. IB Psychology students should pick the concepts that most directly connect to specific details in the study, rather than the concepts with which they feel the most confident.
Next, learners should define each concept before applying them. A common way to lose marks is to try applying a concept, but without a clear definition accompanying it. While most relevant to Section B, this also applies to Section A in terms of the different research methods used in Psychology.
IB candidates should remember that the Paper 2 mark scheme rewards precise language, and therefore they should incorporate this psychology-specific terminology throughout their responses. To that end, practising timed Section B responses can be an effective revision method, as it requires a structured answer demonstrating clear development. A generic application of essay structure will limit the effectiveness of the response.
How BartyED’s IB Psychology Tutors Can Help You
Any time the IB changes their courses, it can create confusion for candidates. That’s why all of BartyED’s IB Psychology tutors have been specifically trained on the 2027 syllabus. They understand how to conduct concept-based evaluation, a key part of the Paper 2 skillset. In fact, students typically underperform on this paper due to inexperience with applying the concepts and research methods to exam questions.
Our team of expert IB Psychology tutors is ready to support you or your child in their study of IB Psychology. If you’d like to learn more, follow this link to our contact page, or get in touch with us via phone, email, or WhatsApp.
Frequently Asked Questions
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Paper 2 evaluates IB Psychology students’ understanding of research methods. It is split into Section A (research methods in class practicals) and Section B (research methods in an unseen study).
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The exam is 1 hour 30 minutes long for both SL and HL students.
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For SL students, Paper 2 represents 35% of their total grade; for HL students the exam is worth 25%.
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Paper 1 examines students’ acquisition of knowledge and their understanding of theories and models from the course. Meanwhile, Paper 2 concerns research methods in IB Psychology.
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Paper 2 for IB Psychology has completely changed for 2027 assessment. It is no longer an essay-response to optional topics, but rather an evaluation of students’ grasp on research methods and how to apply them effectively in both in-class practicals and an unseen research study.