International schools measure value added by comparing each student’s actual result with what their starting point predicted. With no national measure, schools build their own from Checkpoint bands, cognitive or benchmark tests, and IGCSE results. Cambridge expects a “Good” Checkpoint band to lead to IGCSE C/4 on average; beating that expectation is value added.
What is value added, and why is it hard in international schools?
Value added is progress beyond what students’ starting points predict. Raw results partly reflect intake: a selective school can post high grades while adding little. International schools have no national progress measure to rely on, so they have to decide their own starting points, their own expected outcomes and their own comparison each year.
What can a school use as a starting point?
Any standardised measure taken before the course, as long as it is taken the same way every year.
| Starting point | When | What it predicts | Source |
|---|---|---|---|
| Cambridge Lower Secondary Checkpoint | End of Stage 9 | Expected IGCSE standard: Good → C/4, Outstanding → A/7, “on average” | Cambridge FAQ |
| Cognitive abilities test | Required by KHDA at Grades 3, 5, 7 and 9 | Should “ideally provide forecasts … in external examinations … E.g., iGCSE, A level” | KHDA 2026-27 |
| Curriculum-linked benchmark tests | Annually, e.g. GL Progress Tests in ADEK British schools, Years 4–10 | Progress against curriculum standards over time | ADEK Assessment Policy |
| IGCSE results | End of Year 11 | Starting point for AS and A Level | Board results |
Checkpoint is the most direct link to IGCSE. Cambridge research found same-subject correlations with IGCSE of 0.69 to 0.78, highest for Science to Biology (Gill, 2023). It also warns that “a correlation of 0.70 means that over 50 per cent of the variation is unaccounted for”. That makes Checkpoint a good basis for cohort value added and a weaker one for individual predictions.
How do you calculate value added?
Compare actual with expected, student by student, then summarise by cohort and subject. A simple method:
- Set the expected outcome for each student from their starting point. For example, Checkpoint Good → IGCSE C/4 and Checkpoint Outstanding → A/7, using Cambridge’s expectations. Decide and document how to treat bands Cambridge doesn’t specify.
- Record the actual result.
- Calculate the difference in grades: +1 means one grade above expected.
- Average it by subject and cohort, and track the average over three or more years.
An illustrative example: a cohort of 60 whose starting points predict an average of grade C/4. If it achieves an average of half a grade above that, it shows positive value added of +0.5. The number matters less than the trend and the comparison between subjects.
How do UAE inspectors judge progress?
From starting points, for every group. The UAE School Inspection Framework judges “progress of students, including those with special educational needs, against their starting points and over time”. It also judges “progress of different groups of students”. Outstanding progress is when “internal and external assessment information indicates that most students make better than expected progress in relation to their individual starting points”. A school’s value-added measure is therefore also its inspection evidence. See evidencing attainment and progress for KHDA and ADEK.
What are the common mistakes in measuring progress?
Four to avoid:
- Changing the starting point from year to year, which makes trends meaningless.
- Reading individual predictions as targets for students. A starting-point expectation is a group average, and over half the variation is unexplained.
- Ignoring groups. Whole-cohort value added can hide a group falling behind, which inspectors look for.
- Counting only exam years. Progress between Checkpoint and IGCSE, and between IGCSE and A Level, needs checkpoints in between, such as Year 10 assessments.
How should value added be reported?
By subject and group, over time, alongside raw results. A one-page summary for governors:
- raw results against Cambridge worldwide figures (see benchmarking guide)
- average value added by subject, with a three-year trend
- value added by group: boys and girls, English as an additional language, special educational needs, and higher and lower attainers
- the actions each department is taking where value added is negative
How schools do this with AI Buddy
AI Buddy provides the in-between checkpoints value added needs. Every practice and mock result is stored per student and topic from Year 10, so departments can see whether each student is on track against their starting-point expectation well before the exam. Cohort analytics show which groups and subjects are falling behind. Final value-added calculations still use external results and the school’s chosen starting points.
Frequently asked questions
How do international schools measure value added?
By comparing each student’s actual IGCSE or A Level result with the outcome predicted by a consistent starting point, such as Checkpoint bands or cognitive tests, then averaging by subject and cohort over time.
What does progress from starting points mean?
Progress measured against where each student began, not only against a fixed standard. The UAE inspection framework uses it to judge whether students make expected or better than expected progress.
Can Checkpoint be used to measure value added to IGCSE?
Yes, at cohort level. Cambridge expects a Good band to lead to C/4 and Outstanding to A/7 on average, and its research shows correlations of 0.69 to 0.78 within subjects.
How should a school measure student progress in secondary?
Use a consistent starting point, regular standardised assessments in between, and external results at the end, reported by subject and student group over several years.
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Sources
- Cambridge International, Progression Tests and Checkpoint performance band FAQs
- Gill, T. (2023), An analysis of the relationship between Secondary Checkpoint and IGCSE results, Research Matters 36
- KHDA, External Benchmark Assessments Requirements 2026-2027 and UAE School Inspection Framework
- ADEK, School Assessment Policy v1.2