IBDP Psychology

Group 3 | Psychology

What will I learn?

Psychology is the rigorous and systematic study of mental processes and behaviour. It is a complex subject that draws on concepts, methods and understandings from a number of different disciplines. No single approach can fully describe or explain human behaviour on its own, human beings are complex, with highly developed cognitive abilities, intricate social structures and diverse cultural backgrounds. The study of behaviour and mental processes therefore requires a multidisciplinary approach and a variety of research techniques, whilst recognising that behaviour is not static; it is adaptive, and as the world and its challenges change, so too does behaviour.

At the core of the new DP Psychology course (first assessment 2027) is an integrated framework built around three pillars: concepts, content and contexts. Rather than memorising isolated theories, students are asked to apply key psychological concepts of bias, causality, measurement, change, perspectives and responsibility across real-world settings. The content draws on three established approaches to understanding human behaviour: the biological, cognitive and sociocultural approaches, alongside a rigorous grounding in research methodology. These are then explored through four applied contexts that form the heart of the course:

• Learning & Cognition
• Human Relationships
• Health & Wellbeing
• Human Development

The knowledge, theories and research that have shaped understanding in each field will be studied and critically evaluated, allowing students to engage with the questions psychologists are asking today. Underpinning the entire course is a commitment to psychological literacy, the ability to think critically about human behaviour using evidence. Students will engage with empirical research, evaluate everyday claims (including those made in social media), and design their own research proposals as part of the internal assessment. Ethical awareness remains central throughout: as psychology studies human beings, the ethical implications of research must be fully understood and applied at every stage of inquiry.

Distinction between SL and HL: 

There are three main distinctions between the course at Standard Level and Higher Level. First, HL students study four additional extensions to the core course that are not required at SL. These explore the role of culture, the influence of motivation, the impact of technology on human behaviour, and a dedicated focus on data analysis and interpretation, all of which are directly assessed in Paper 3, an examination that exists only at HL. This paper requires students to interpret both quantitative and qualitative research findings from a range of sources, developing a sophisticated understanding of research methodology that goes beyond what is expected at SL.

Second, the overall teaching time and weighting of external assessment differs significantly. HL students complete 240 hours of teaching compared to 150 hours at SL, and their external assessment accounts for 80% of their final grade (compared to 70% at SL), reflecting the greater depth and breadth of content covered. Third, the internal assessment, a research proposal of 1,800 to 2,200 words, carries a weighting of 30% at SL but only 20% at HL, where the additional Paper 3 takes up that balance. Both SL and HL students complete the same research proposal task, assessed internally by the teacher and externally moderated by the IB.

Why should I consider this course?

The study of Psychology helps us understand how our behaviour is shaped by the societies and cultures we experience, and how we in turn shape our environment. It offers insight into individual mental processes and behaviour across the full range of human experience, from learning and relationships to health and development across a lifetime. The new 2027 course places a strong emphasis on critical thinking and evidence literacy, skills that are increasingly valuable in a world saturated with information. Students learn to question assumptions, assess research quality and draw careful conclusions about human behaviour, with the internal research proposal providing direct, practical experience of the scientific process. 

Assessment

What Skills does this course provide?

IB DP Psychology develops a broad and transferable set of skills that extend well beyond the classroom. Students build strong written communication through evidence-based argument, and develop numeracy and data literacy through the analysis of psychological research. Critical evaluation is woven throughout the course, with students regularly interrogating the methodology, ethics and conclusions of published studies. More broadly, the course fosters problem-solving, scientific inquiry and the ability to hold multiple perspectives simultaneously, equipping students to better understand psychological challenges in their own lives and in the lives of others.

What Pathway Options does this course provide?

Psychology opens doors to a wide range of university courses and careers. The subject provides direct preparation for tertiary study in psychology, psychiatry, counselling, social work, education and the health sciences, and is equally relevant to careers in human resource management, marketing, law, youth work and community services. The analytical, research and communication skills developed throughout the course are highly valued across many fields, and the course satisfies the IB Group 3 requirement, pairing well with Biology, Health Science or Business