The CXC SBA guide 2026: marks and integrity rules

Q: What is the CXC School-Based Assessment (SBA)?

The SBA is coursework completed during the school year under your teacher's supervision. It contributes a set percentage to your final CSEC or CAPE grade and covers practical, research, or project skills that written papers cannot assess. The exact weighting varies by subject and is stated in each syllabus.

Q: Can I use AI in my CXC SBA?

CXC has published an AI Policy Framework and AI Standards and Guidelines. The guiding line is that submitted work must be your own: using AI to generate answers or content you then submit as your own work is treated as academic dishonesty. Using tools transparently, where your syllabus or teacher allows and you declare them, is a different matter. Always check your school's rules and CXC's published guidance.

Q: How much is the SBA worth in my CXC grade?

The SBA weighting differs by subject and syllabus — commonly between 20% and 50% of the final grade for CSEC and CAPE subjects. Your subject syllabus and the SBA handbook state the exact percentage for your subject.

The School-Based Assessment is the most controllable part of your CXC grade. It is marked by your own teacher against CXC criteria, it is spread across the school year, and it tests skills — practical work, research, projects — that a written paper cannot. And yet it is the part students treat most casually. The 2026 reforms make that a riskier habit than ever.

What the SBA actually is

For most CSEC and CAPE subjects, the SBA is a set of assessed activities completed in class under your teacher's supervision: experiments and lab books in the sciences, research projects in business subjects, studio work in the arts, field studies in geography. Your teacher marks the work against CXC criteria and submits the marks; CXC moderates them to keep standards consistent across schools and territories.

How much it is worth

The weighting is set per subject in each syllabus — commonly between 20% and 50% of the final grade. That is not pocket change: in a 50% SBA subject, your coursework is half the certificate. Two practical consequences follow:

A strong SBA buys you room on the papers. If your SBA is solid, you can afford a mediocre day in the exam hall.
A weak SBA quietly caps your ceiling. No amount of final-week cramming can replace marks that were earned across the year.

The new integrity framework

In 2026 CXC announced major reforms to the SBA framework — "Holding to the Standard" — aimed at strengthening assessment integrity across CSEC and CAPE, explicitly in response to the rapid rise of generative AI. The direction of travel is clear: CXC is tightening how coursework is verified, and it has published an AI Policy Framework and AI Standards and Guidelines for stakeholders, students, and teachers.

What this means practically: schools are being asked to do more verification, CXC is moderating more closely, and submissions are being checked more rigorously. The reforms do not ban technology — they clarify ownership.

AI: what you may and may not do

CXC's stated position is pro-student: it has reaffirmed a "pro-student, pro-teacher" stance on the responsible use of AI in SBAs. The line that matters:

Your submitted work must be your own. Submitting AI-generated answers or content as your own work is academic dishonesty — the same as copying a friend's essay.

Using AI tools transparently — for planning, research, or feedback — where your syllabus or teacher allows it and you declare it, sits in a different category. The safe play in 2026:

Ask your teacher what is allowed in your subject before using any AI tool.
Keep drafts, lab records, and research notes — they are your evidence of ownership.
Use AI for what it is good at in study: explaining a concept you do not understand, generating practice questions, or checking your reasoning. That is learning, not submission.

How to protect your SBA marks

Write the deadline calendar in week one. Get every SBA due date from your teacher and work backwards.
Show the process, not just the product. CXC criteria reward method, data, and reflection — a clean result with no working earns less than a messy one with a full trail.
Keep originals. Screenshots, drafts, and dated notes protect you if a submission is ever questioned.
Treat SBA topics as revision. The same content appears on the written papers — SBA time is study time.

2026 in one line

SBA marks are earned across the year, weighted per syllabus (often 20–50%), and now verified harder than before. Keep the work yours, keep the evidence, and treat it as revision.

Frequently asked questions

What is the CXC School-Based Assessment (SBA)?

Coursework completed during the school year under your teacher's supervision, contributing a set percentage to your final CSEC or CAPE grade. The exact weighting is stated in each subject's syllabus.

Can I use AI in my CXC SBA?

Submitted work must be your own — submitting AI-generated content as your own is academic dishonesty. Transparent use for planning, research, or feedback, where your teacher allows and you declare it, is different. Check CXC's published AI guidance and your school's rules.

How much is the SBA worth in my CXC grade?

Commonly between 20% and 50% of the final grade for CSEC and CAPE subjects, depending on the syllabus. Your syllabus and the SBA handbook state the exact percentage.