How to Pull the Right Lever
School Attainment, Open Data Analytics and Policy in England — Lessons from Brighton and Hove (v2.0)
Adam Dennett
Bartlett Centre for Advanced Spatial Analysis, UCL
2026-08-26
Who am I?
- Professor of Urban Analytics @ CASA, UCL
- Data, Urban Policy, Quantitative Methods, Maps
- Former State Secondary School Geography Teacher
- Brighton Resident and Parent
- Lifelong Labour voter and former party member
Why are we all here?
- I made you come
- An awareness of controversial changes to secondary admissions in the city over the last 2-years
- An interest in schools and educational attainment more generally
- An interest in supporting disadvantaged students to achieve
- An interest in data and evidence-based policy making
- You’ve read my report and want to ask some questions
- Or took one look at the length of it and thought it easier to hear me talk about it
- A good opportunity to throw something at me
First — today’s response from Class Divide
Class Divide have published a thoughtful response to this report today. I am grateful for it — they have spent six years working on exactly the barriers this talk is about, and we share the same goal.
- We agree on far more than we differ on:
- Poverty is foundational — the attainment gap has many tangled causes
- Absence matters enormously — and much of it is poverty: bus fares, unmet special educational needs, ill health
- Outcomes for our poorest children — in Whitehawk especially — are not good enough
Where we differ — and it is narrow
- My question is deliberately narrow: in a city already among the most integrated in England, does moving children between schools deliver enough attainment gain to justify the certain cost to the children who move?
- The disruption is certain, and now; the benefit is uncertain - looking at the data helps us reduce that uncertainty. The burden of proof sits with the intervention.
- And it is not “almost no cost”: moving children further afield lengthens daily journeys — and longer journeys mean more absence (my own report shows this), borne hardest by the poorest. That is the very lever we all agree matters most.
- Absence (which I will talk about a lot) is not an “unfixable excuse” - if all schools in the city had the same absence levels as the city’s best, it would make a huge dent in the disadvantage attainment gap.
- This is, in the end, partly a question of values as well as evidence - but this talk is concerned principally with the evidence.