Introduction: When “Fair” Doesn’t Always Mean “Consistent”
Even the most experienced IB teachers know how challenging it is to keep marking consistent — across classes, cohorts, or even within their own assessments. The IB expects global standardization, but subjective interpretation of criteria often leads to uneven results.
Two teachers can mark the same essay and award different scores. Students notice — and it undermines confidence in the system. Department heads spend hours moderating, and teachers second-guess their own judgment.
That’s why IB schools are turning to RevisionDojo, a platform designed to bring transparency, standardization, and alignment to every assessment, no matter who marks it.
Why Consistent Grading Is So Difficult in IB Teaching
IB assessment demands professional judgment — but that flexibility can introduce variation. Here are the main consistency challenges teachers face:
- Subjectivity in interpretation: Rubrics leave room for teacher discretion.
- Different marking speeds: Fatigue or time pressure affects accuracy.
- Limited moderation time: Departments rarely have time for detailed cross-checking.
- Criterion complexity: Students are marked across multiple objectives (AO1–AO3), which can be hard to balance consistently.
- Evolving expectations: IB guides change, but not all teachers adopt updates equally fast.
Even with strong moderation processes, human variation creeps in.
Quick Start Checklist: Improving Assessment Consistency
Before adopting new systems, teachers can improve grading alignment with simple practices:
- Use exemplar scripts: Mark sample essays together before real grading.
- Regularly revisit how rubrics are interpreted.
