What Is Criterion D in MYP Subjects?
Criterion D in MYP subjects is the fourth subject-specific assessment criterion in the IB Middle Years Programme. Its meaning varies by discipline: Criterion D may assess reflection, evaluation, communication, critical thinking, or the application of learning to a real-world context.
For example, in MYP Sciences, Criterion D is Reflecting on the impacts of science. A student might evaluate how water-filtration technology affects communities, considering benefits, limitations, and wider consequences rather than only describing how the filter works.
Why Criterion D Varies Across Subjects
MYP assessment is criterion-related. Teachers assess work against published subject criteria rather than ranking students against one another. Each MYP subject group normally has four criteria, labelled A, B, C, and D, and each criterion uses achievement levels from 0 to 8.
Criterion D is not one universal skill because the IB aligns each criterion with the objectives of a particular subject. Reflection in science differs from evaluating an artwork, communicating in a language course, or analysing perspectives in humanities.
The wording of strands can also depend on the subject, MYP year, language-acquisition phase, and task. Your teacher’s rubric is the authoritative guide, so do not rely on a generic online summary alone.
Examples of Criterion D in MYP Subjects
| MYP subject group | Criterion D commonly focuses on | What students may need to demonstrate |
|---|---|---|
| Sciences | Reflecting on the impacts of science | Evaluate implications of scientific developments and applications |
| Individuals and Societies | Thinking critically | Analyse arguments, perspectives, sources, and issues before supported conclusions |
| Arts | Evaluating | Reflect on artistic development and evaluate work using relevant evidence |
| Language and Literature | Using language | Use accurate, varied, and appropriate language for purpose, audience, and context |
| Physical and Health Education | Reflecting and improving performance | Evaluate performance and identify realistic strategies for improvement |
These examples are based on official IB materials, including the MYP Sciences subject overview, Individuals and Societies subject overview, and MYP Arts subject overview. The table shows each criterion’s central idea, not every strand or achievement-level descriptor.
How Command Terms Affect Criterion D
MYP command terms identify the type of thinking or performance required. A response can contain accurate information but still score poorly if it does not perform the required action.
- Describe: give a detailed account of features, events, or processes.
- Explain: give reasons or causes and show how something happens.
- Analyse: break information into parts and explain relationships or significance.
- Justify: support an answer or conclusion with valid reasons or evidence.
- Evaluate: consider strengths, limitations, implications, or alternatives before a supported judgment.
- Reflect: consider what was learned, how successful a process was, and what could improve.
“Describe the impact” may require accurate effects. “Evaluate the impact” requires evidence, consideration of relevant factors, and a reasoned judgment. Listing advantages and disadvantages is not automatically evaluation if the response never weighs them or reaches a conclusion. The MYP command-term guidance explains how command terms indicate the expected type and level of performance.
A Practical Method for Improving Criterion D
1. Identify the exact strands
Read the task sheet and highlight Criterion D. Copy the relevant strands into your notes, then rewrite each as a question: “What must the marker be able to see in my work?”
2. Match the command term
Underline words such as analyse, justify, evaluate, or reflect. Translate each into an action. An evaluation needs evidence, consideration of limitations or alternatives, and a supported judgment.
3. Make evidence visible
Do not assume your teacher will infer your thinking. Use specific examples, data, quotations, calculations, design decisions, performance evidence, or references to your process, depending on the subject.
4. Compare with the top descriptor
Read the 7--8 descriptor and check whether your work demonstrates the quality described there. Sophisticated vocabulary is not the goal; detailed, appropriate, well-supported thinking that addresses the strand is.
5. Review feedback by strand
After feedback, identify whether the issue was inaccurate knowledge, a misunderstood command term, weak evidence, or a missing strand. The RevisionDojo MYP assessment criteria guide recommends working from the current teacher rubric. The MYP subject assessment task examples show how criteria appear across disciplines, while the IB command terms guide clarifies differences between describing, analysing, and evaluating.
Common Mistakes
The most common mistake is assuming Criterion D always means “reflection.” It may do so in some subjects, but it can instead assess communication, critical thinking, evaluation, or application.
Another mistake is treating the criterion title as sufficient guidance. The title gives the broad focus; the strands and achievement-level descriptors show what successful evidence looks like. Strong work connects evidence to reasoning and then to a conclusion, judgment, or practical improvement.
Conclusion
Criterion D is the fourth MYP assessment criterion, but its meaning depends on the subject. Identify the exact strands, interpret the command terms, provide visible evidence, and compare your work with the relevant achievement-level descriptor. RevisionDojo’s MYP Study Notes, Questionbank, Flashcards, and Jojo AI can support targeted practice with the skill your rubric requires.
