AO3Synthesis & Evaluation
IB Command Term: Justify
What does "Justify" mean in IB exams? Learn how to defend your answer with evidence, structure your response, and avoid common mistakes.
IB Definition
"Provide evidence to support or defend a choice, decision, strategy or course of action."
Marks: 4–6 marksAssessment Objective: Objective 3
What You Need to Do
Explain WHY your answer is correct with evidence or reasoning. Give valid reasons to support your position.
How to Structure Your Answer
- 1State your position or choice clearly
- 2Give reason 1 with supporting evidence
- 3Give reason 2 with supporting evidence
- 4Explain why alternatives are less suitable (if applicable)
Example Exam Questions
- “Justify the use of cost-benefit analysis as a decision-making tool.”
- “Justify your choice of sampling method for investigating river pollution.”
- “Justify a recommendation to a named business considering international expansion.”
- “Justify the implementation of a progressive tax system.”
Common Mistakes
- ✗Making a statement without giving reasons
- ✗Not using evidence or examples to support reasoning
- ✗Ignoring counterarguments or alternative options
- ✗Being vague instead of specific about your justification
Examiner Tip
Give valid reasons or evidence to support your answer. REASONS are essential, not just statements.
Where This Term Appears
ESSMediumBusiness ManagementHighEconomicsMedium