The IB Psychology Extended Response Question (ERQ) is a key component of your exam where you must demonstrate deep knowledge, research application, and critical thinking. Understanding the official ERQ rubric helps you structure answers that meet IB expectations and maximize your marks.
The Five Key Criteria of the IB Psychology ERQ Rubric
A. Focus on the question
- How clearly and directly the response addresses the question
- Maintains relevance throughout
- 2 marks
- B. Knowledge and understanding
- Uses detailed, relevant psychological knowledge
- Employs accurate terminology
- 6 marks
- C. Use of research to support answer
- Incorporates at least two relevant studies
- Explains aims, procedures, and findings to support arguments
- 6 marks
- D. Critical thinking
- Evaluates strengths and limitations of research
- Discusses alternative perspectives
- Develops a reasoned argument
- 6 marks
- E. Clarity and organization
- Presents a logical structure
- Uses clear language
- Maintains coherent paragraphs
- Marks vary
Tips for Achieving a High Score on the ERQ
- Stay focused on the question from start to finish; avoid irrelevant information.
- Demonstrate deep knowledge by accurately explaining theories, concepts, and terms.
- Support your points with well-explained research studies—describe aims, methods, and findings clearly.
- Show critical thinking by evaluating research strengths, weaknesses, and considering alternative views.
- Organize your essay logically with clear introductions, body paragraphs, and conclusions.
Understanding Markband Levels
- Low marks (1-2): Basic or limited knowledge, mostly descriptive, minimal use of research or evaluation.
- Mid marks (3-4): Relevant knowledge and research included but lacks depth or full explanation; some critical analysis.
- High marks (5-6): Thorough and detailed knowledge, well-integrated research, strong critical thinking, and clear argumentation.
Why the ERQ Rubric Matters
This rubric aligns with IB Psychology’s assessment objectives, ensuring that essays reflect not only what you know but also your ability to apply, analyze, and communicate psychological understanding effectively.
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