1,800 A-Level Science Questions — Delivered in 10 Weeks, Exam-Board Ready
A specialist UK science publisher needed a complete A-Level Biology and Chemistry question bank aligned to three exam boards — AQA, OCR, and WJEC — with mark-scheme rationales, command-word tagging, and Bloom's difficulty calibration. Vaidik Eduservices delivered every item on time and on standard.
A Publisher Running Out of Time — and Items
The client — a specialist UK science publisher with over two decades in the A-Level market — was preparing a new digital assessment product for release ahead of the academic year. Their editorial team had produced a strong item framework but had hit a capacity wall: they needed 1,800 exam-quality questions across A-Level Biology and Chemistry, aligned to multiple exam boards, with mark schemes and difficulty metadata. Their internal subject writers could produce roughly 60 items per week. They needed 1,800 in ten weeks.
Beyond sheer volume, the quality bar was non-negotiable. Every item had to reflect real exam-board command-word conventions, sit at the correct Bloom's level for its tier, and come with a mark-scheme rationale detailed enough for teachers to use directly in class. Generic question-writing studios had failed them before — too little subject knowledge, too many revisions.
Vaidik Eduservices assembled a team of A-Level Biology and Chemistry specialists, structured a phased delivery workflow, and embedded an editorial review layer with IRT-based difficulty calibration at every stage.
Four Quality Gates — Any One Could Derail Delivery
A-Level science question development is one of the most technically demanding forms of educational content writing. Four distinct challenges had to be managed simultaneously.
Deep Subject-Matter Accuracy Required
A-Level Biology and Chemistry questions demand university-level subject knowledge from writers. Factual errors — a mislabelled enzyme, a wrong oxidation state — invalidate an item entirely. Writers without A-Level teaching or examination experience cannot meet this bar consistently.
Three Exam Boards — Three Different Conventions
AQA, OCR, and WJEC each have distinct command-word hierarchies, mark allocation conventions, and syllabus depth expectations. Items couldn't simply be cross-tagged — they needed to be written to each board's house style from the outset.
Difficulty Calibration Across Bloom's Levels
The publisher needed a specific distribution of items across Bloom's Taxonomy levels — roughly 30% knowledge/comprehension, 45% application/analysis, 25% evaluation/synthesis. Maintaining that distribution at scale, without manual re-sorting, required a structured tagging system from day one.
10-Week Deadline — Non-Negotiable
The publisher's product launch was fixed to the pre-academic-year window. Missing the deadline meant a full year's delay in product revenue. The delivery schedule had to absorb review cycles, revisions, and QTI 2.1 export formatting without slipping.
Phased Delivery — Board by Board, Subject by Subject
We structured delivery in four phases — prioritising AQA (the largest candidate volume) first, so the publisher had usable assets within three weeks while the remaining boards were in development.
Item Framework & Taxonomy Setup
Built the master item template — command-word taxonomy, Bloom's level definitions, mark-scheme structure, and QTI metadata schema — agreed with the client's editorial lead before a single item was written.
AQA Biology & Chemistry — 720 Items
A team of six A-Level specialists produced 720 AQA-aligned items across Modules 1–6 (Biology) and Topics 1–8 (Chemistry). Each batch of 60 items went through subject-accuracy review and Bloom's calibration check before handover.
OCR & WJEC — 1,080 Items in Parallel
OCR A, OCR B, and WJEC items were developed in parallel streams — separate writers per board to maintain house-style consistency. Bi-weekly cross-board quality checks ensured difficulty distribution remained on target.
IRT Review, QTI Export & Final Handover
All 1,800 items passed a final IRT-based difficulty review. Items outside the target difficulty band were revised or replaced. Full QTI 2.1 export package delivered with metadata index, Bloom's distribution report, and board-specific item lists.
Bloom's Taxonomy Distribution — By Design, Not Chance
The publisher specified an exact Bloom's distribution. We built a live tagging dashboard that tracked the spread across all 1,800 items in real time — flagging imbalances at batch level before they accumulated.
Remember & Understand
30%540 items — definitions, recall, basic comprehension. Suitable for AS-style starter questions and low-demand paper 1 items.
Apply & Analyse
45%810 items — data interpretation, calculation, experimental reasoning. Matched to A-Level mid-tier paper 2 and 3 question styles.
Evaluate & Create
25%450 items — extended response, design-an-experiment, evaluate-the-conclusion. Aligned to high-demand synoptic questions across all three boards.
1,800 Items. 10 Weeks. Zero Board Rejections.
The complete question bank shipped on schedule — and the publisher's digital assessment product launched before the academic year as planned.
"We'd tried two other content partners before Vaidik. The subject knowledge just wasn't there — we spent more time correcting than we saved outsourcing. Vaidik's writers clearly knew A-Level science from the inside. Every batch came back clean, every mark scheme was usable. We launched on time for the first time in three years."
— Head of Assessment Content, UK Science Publisher
- AQA batch delivered in Week 5 — publisher's in-house team began platform integration while OCR/WJEC items were still in development
- Bloom's distribution report delivered with every batch — no post-delivery re-sorting required by the client
- Mark-scheme rationales written to teacher-facing depth — usable directly in classroom feedback without editorial rework
- QTI 2.1 export validated against client's assessment platform before final handover — zero import errors
- Full item source files (Word + metadata index) handed over — client's team can revise and extend independently