Delta research

Briefings

Each briefing takes a single course or a single question, sets out the evidence behind it, and says plainly what that evidence does and does not support.

Publication programmePapers below have been produced and circulated privately. Public editions will be posted here as they are released. Until then a copy can be requested.

Oxford Classics · 2026 entryIn circulation

Shortlisting is generous. The offer stage is not.

Ninety-one per cent of applicants reached interview, so almost the whole decision rested on the language tests and the interview, where placed candidates led the shortlisted field by roughly five to eight marks.

OxfordClassicsAdmissions tests
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Oxford Music · 2025 entryIn circulation

What the portfolio is actually for.

Performance recordings and written work are marked by faculty assessors and passed to interviewers, but they carry no weight at shortlisting, where 86 per cent of the field advanced.

OxfordMusicProcess
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Cambridge Geography · 2025 entryIn circulation

What a GCSE profile does, and does not, tell you.

Offer holders declared 5.71 grade 9s on average against 4.97 for those not offered, a real separation but a narrow one, and A*AA behaved as a floor rather than as a signal of strength.

CambridgeGeographySchool results
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Publication standard

Clear enough to use. Rigorous enough to test.

A briefing is worth publishing when a reader can follow it back to the evidence and disagree with it on the evidence.

01 / EVIDENCE

Traceable sources

Every substantive figure keeps a clear route back to the institution or dataset that published it, and the cycle it describes.

02 / METHOD

Visible reasoning

Published fact, derived analysis, and interpretation stay explicitly separate, and uncertainty is stated rather than implied.

03 / USE

Practical consequence

Each paper closes by saying what the finding changes for a student, an adviser, or a school, and what it does not change.

Questions about Delta's research?

research@deltaacademics.com