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1. Concepts
1.1 Bias
1.2 Causality
1.3 Change
1.4 Measurement
1.5 Perspective
1.6 Responsibility
2. Content
2.1 Biological Approach
2.2 Cognitive Approach
2.3 Sociocultural Approach
2.4 Research Methodology
3. Contexts
3.1 Health and Well-being
3.2 Human Development
3.3 Human Relationships
3.4 Learning and Cognition
4. Extensions (HL only)
4.1 Culture
4.2 Motivation
4.3 Technology
4.4 Data Analysis and Interpretation
Ecological fallacy
The mistake of assuming that every individual in a culture follows that culture's norms, when people within any culture vary widely.