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IB DP Psychology — Cognitive Approach | SL & HL | Paper 1
🎯 Learning Intentions By the end of this note, you will be able to:
- Define schema, schema theory, and related concepts such as assimilation, accommodation, and reconstructive memory using IB-aligned terminology.
- Explain how schemas are formed, stored, and activated, and how they influence the way people perceive, interpret, and recall information.
- Describe the role of schemas in memory distortion and the reconstruction of past events.
- Evaluate research evidence for schema theory using supporting and opposing studies in ACAS format.
- Apply schema theory concepts to a real-world case study from the cognitive perspective.
- Discuss the extent to which schema theory provides a complete explanation of memory and cognition.
- Analyse schema theory using relevant concept areas: Bias, Causality, Measurement, and Perspective.
Introduction & Context
Imagine you walk into a restaurant for the first time. You have never been there before, yet you instinctively know what to do: you wait to be seated, you expect a menu, you assume someone will take your order, and you know that you will pay before leaving. Nobody told you any of this on arrival. So how did you know? The answer lies in the fact that your brain was not encountering a restaurant for the first time — it was drawing on a rich mental framework built from every previous dining experience you have ever had.
This kind of automatic, effortless understanding of the world is not accidental. The human mind is remarkably efficient at organising knowledge into structured mental packages that can be rapidly retrieved and applied to new situations. These packages allow us to make sense of unfamiliar experiences, fill in missing information, and process the world far faster than we could if we had to reason from scratch every time. Psychologists have long been interested in how this organisation works — and schema theory is one of the most influential answers the cognitive approach has produced.
🗂️ Analogy — The Filing Cabinet Think of your long-term memory as a vast filing cabinet. Each drawer contains a folder labelled with a category of experience — "birthday party," "job interview," "classroom lesson." When you encounter a new experience, your brain does not create a blank file; instead, it opens the nearest matching folder and uses the existing contents to interpret what is happening. If some details are missing or unclear, the brain fills them in using what is already in the folder. This is exactly how schemas work: they are the pre-existing folders that shape what we notice, how we interpret it, and what we later remember.
Core Concepts
Before we can understand how schemas distort memory or shape perception, we need to understand what a schema actually is. The concept was first developed by the British psychologist Frederic Bartlett in the 1930s, though it was later formalised and extended by cognitive psychologists working in the information-processing tradition. Bartlett noticed that when people recalled stories from unfamiliar cultures, they did not reproduce them accurately — instead, they unconsciously altered the stories to make them fit their own cultural expectations. This observation suggested that memory is not a passive recording device but an active, constructive process shaped by prior knowledge.
📖 Key Definition — Schema A schema is a cognitive framework or mental structure