A folder labeled “Psychology” looks reassuringly familiar. The name on the cover rarely changes when the assessment inside it does. For students working from inherited materials, the question that matters is which assessment version those materials belong to.
Psychology shows how deep the change can go. iBacalao, an education news and analysis source, reports in its May 2027 assessment-change matrix that the International Baccalaureate (IB) Diploma Programme (DP) psychology course is moving to a new assessment model with first assessment in May 2027. The same report, “IB Psychology adds data-analysis Paper 3 and shifts IA to research proposal for May 2027,” describes a course reorganized around concepts, content and four contexts. Higher Level (HL) gains a data-analysis Paper 3. The Internal Assessment (IA) moves from an experimental study to a research proposal for both Standard Level (SL) and HL.
The extended essay follows the same pattern. According to the International Baccalaureate Organization’s extended essay updates, its revised assessment model also has first assessment in May 2027. Its five criteria are capped at 6, 6, 6, 8 and 4 marks, which sum to 30, and the official Extended essay guide for first assessment 2027 is where those criteria and markbands are defined. A folder name cannot tell a student which of these models its contents were written for.
Inherited materials carry no version label
Study materials rarely carry a label for the version they serve. Notes, past papers and shared PDFs pass between cohorts, and the first-assessment year seldom travels with them.
That matters because practice builds routines. Schwartz et al.’s paper “Resisting Overzealous Transfer” describes negative transfer, where previous learning hurts new learning. Hulbert and Norman’s review on interference and inhibition explains how outdated information can persist in memory and intrude on newer knowledge. Applied to revision, months spent on an outdated task can plausibly make a new approach harder to adopt close to the assessment.
The International Baccalaureate Organization issues the Diploma Programme coordinator’s notes as an official bulletin for DP coordinators. Its November 2011 edition includes a “Use of old tasks” section explaining that some IB-set tasks have a limited shelf-life and are replaced once they are no longer current. The bulletin adds that there can be consequences for non-compliance, and it draws a plain conclusion from that shelf-life:
“However, a consequence of this is that the old tasks must not be used.”
— International Baccalaureate Organization, Diploma Programme coordinator’s notes, Nov 2011
The same logic carries over to revision. Tasks that have been replaced should no longer be in circulation, and practicing on them risks training students on the wrong model. The bulletin was written about an earlier change, so version drift is clearly not a 2027 invention.
Schools face the version problem too
The version problem looks different at school scale. An individual student has to identify the version of a shared resource, while a school may have first-year (DP1) and second-year (DP2) cohorts working from different subject guides at the same time. A school-level planning system can address this by holding curriculum versions in one place. ManageBac+, an online learning and school-management platform from Faria Education Group, is widely used by IB World Schools and takes this approach.
ManageBac+’s own documentation on the 2025 IB curriculum updates describes a one-year transition period in which both the “last assessment” and “first assessment” versions are available in the Unit Planner. DP1 and DP2 cohorts on different guides can therefore sit inside the same system. Its help and product pages state that when an IB curriculum review occurs, the platform keeps “forms, assessment criteria, and subject content aligned” by centrally updating assessment criteria, IA forms, syllabi and related subject data.
Version tracking becomes something configured in the planning system, not another detail each teacher has to keep in mind or track manually. A system like that can keep a cohort aligned structurally, but each student still decides which notes and past papers to practice with.
Aligned practice pays off once the version is known
Revision pays off most when it is aligned with the assessment a student will actually sit. In a randomized 20-week study, Wonder-McDowell and colleagues (2011) followed 133 struggling second-grade readers. One group received supplemental instruction aligned with its core reading program, and the other received instruction that was not aligned. Both groups improved from pretest to posttest. The aligned group posted higher, statistically significant residual gain scores across several measures, although the effect sizes were small.
For exam revision, the parallel is aiming practice at the specific assessment structure. Revision Village, an online revision platform for IB Diploma and IGCSE students, organizes its questions by subject and syllabus structure across 14 IB Diploma subjects at SL and HL. Its Questionbank holds thousands of exam-style questions, and students can filter them by topic and difficulty to work on the part of the course they are sitting. Each question comes with a written markscheme and a step-by-step video solution produced by experienced IB educators. iTechGuides examines the platform in its Revision Village review.
Once students have confirmed their cohort’s assessment version and what has changed, Revision Village’s filters and explanations help them point revision at the tasks they will actually sit. Skip that check, and equally disciplined work with inherited notes, old past papers or mixed-source practice materials can end up reinforcing habits from a different course version.
Tools for checking older materials
The psychology changes show why checking an older exemplar matters. iBacalao warns that pre-2027 exemplars should not serve as a structural template for the new internal assessment. On its May 2027 assessment-changes page, it sets out three checks across the affected subjects: the task name should match, the criteria and mark structure should match, and the paper or submission structure, such as the number of papers or required components, should still fit the current model.
The student framework puts the version question before the resource question, in three steps:
- Confirm the course code and level.
- Establish the cohort’s year of first assessment.
- Identify structural changes to tasks, papers or IA format between the older material and the current assessment model.
iBacalao’s checklist assumes a student already knows which assessment model applies. The three-step framework helps students establish that model before they rely on older materials.
Checking the version makes inherited materials useful
The inherited folder still carries a familiar subject name, and that name does not identify the assessment version. The version check has to come before choosing or using any revision resource.
ManageBac+’s centrally updated curriculum data makes version changes visible in school planning. Revision Village’s syllabus-organized practice is most useful once students know which assessment version they are preparing for. A student who skips that step may spend months practicing a task that has since changed. So before turning the folder’s first page, ask one question: which version is this?
