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IB DP Psychology — Sociocultural Approach | SL & HL | Paper 1
🎯 Learning Intentions By the end of this note, you will be able to:
- Define acculturation and explain why it is a central concept in the sociocultural approach to psychology.
- Describe Berry's (1997) bidimensional model of acculturation and its four strategies: integration, assimilation, separation, and marginalisation.
- Explain the concept of acculturative stress and the conditions under which it is most likely to occur.
- Evaluate research evidence for models of acculturation using supporting and opposing studies in ACAS format.
- Apply acculturation concepts to a real-world case study from the sociocultural perspective.
- Discuss the extent to which Berry's model provides a complete explanation of how individuals adapt to new cultural environments.
- Analyse research on acculturation using relevant concept areas: Bias, Causality, Perspective, and Responsibility.
Introduction & Context
Imagine moving to a completely new country at the age of sixteen. The language is different, the food is unfamiliar, the social norms feel strange, and the expectations at school are unlike anything you have experienced before. Some of your classmates from your home country have already moved here and seem to have abandoned everything from their past — they speak only the new language, dress like locals, and rarely mention where they came from. Others in your community do the opposite: they live almost entirely within their home-country community, attend cultural events, speak their native language at home, and have little contact with the wider society. You find yourself somewhere in between, trying to hold onto your identity while also building a new life. Which approach is healthiest? Which leads to the best outcomes? These are exactly the questions that psychologists studying acculturation have tried to answer.
The process of cultural change that occurs when individuals or groups come into sustained contact with a new culture is one of the most psychologically significant experiences a person can undergo. It touches on identity, belonging, mental health, and social relationships all at once. Psychologists have developed models to describe and explain the different ways people navigate this process — and to understand why some people thrive while others struggle. The most influential of these frameworks is Berry's bidimensional model, which proposes that the way a person adapts to a new culture is not a single choice but the result of two independent questions they must answer about their own identity and relationships.
🔄 Analogy — The Two Dials Think of acculturation like a mixing board with two separate dials. One dial controls how much you want to keep your original cultural identity — your language, traditions, values, and sense of who you are. The other dial controls how much you want to engage with and participate in the new culture around you. You can turn each dial up or down independently. The combination of settings on both dials determines your acculturation strategy — and different combinations lead to very different psychological outcomes.
Core Concepts
Before we can understand the different strategies people use when adapting to a new culture, we need a precise term for the overall process itself. Researchers noticed that when people from one cultural background come into prolonged, direct contact with a different culture, both groups change — but the changes are rarely equal. The group with less social power typically undergoes more significant transformation. This process of cultural and psychological change resulting from intercultural contact needed a name, and the term that has come to define