Explore the research programme Commission a measurement
International Research Institutefor Shared Perceptions
01 The gap Illustrative until the first round reports (Q4 2026)
Ask a public how many of their fellow citizens trust the courts. The answer is 64 in 100. The measured share is 38.
Ask how many of their neighbours were born abroad. The answer is 59. The register says 27.
Ask how many will fall seriously ill this year. 72, they say. The evidence says 45.
02 The institute
IRISP® measures what societies believe — and publishes every finding openly.
03 How it is measured The measurement framework, IRISP/2026/005
Not what people think of an issue, but what they think is true of the people around them: how many trust, how many were born abroad, how many will fall ill. Sampled and weighted to the population; the instrument is fixed in writing before any fieldwork.
Registers, official statistics and the institute's own measurement supply the second figure. The distance between the two is the finding — the perception gap — reported with its uncertainty.
Report, method note and aggregate dataset appear together, with a reference number and a DOI, in open access. Individual records never leave the institute.
04 Research agendas The institute's research areas are pursued across fields ranging from political psychology to social epidemiology.
IRISP · Research agendas The structure of institutional trust and its movement over time are examined.
02 / 06How the news and platform environment shapes judgements is investigated.
03 / 06The distance between public belief and evidence is measured.
04 / 06The share of attention, memory and language in a judgement is addressed.
05 / 06A society's perception of its own composition is examined.
06 / 06How risk and the prevalence of illness are judged is investigated.
Illustrative until the first round reports (Q4 2026)
05 The open record
Institutional document · IRISP/2026/006 IRISP® Research Programme 2026–2028 
Methods note · IRISP/2026/005 The IRISP® Measurement Framework 
Working paper · IRISP/2026/004 Defining Shared Perceptions: A Conceptual Framework 
Working paper · IRISP/2026/003 Perception Gaps: Approaches and Pitfalls 
Methods note · IRISP/2026/002 Survey Ethics and Anonymisation: The IRISP® Protocol 
Institutional document · IRISP/2026/001 Founding Charter and Working Principles 06 For institutions
Governments, companies, foundations and public figures commission IRISP® to measure how a perception stands — among a public, a workforce, a membership, a constituency — against the evidence. The instrument and the review are the institute's own; the question and the result belong to the client.
How an engagement runsReports, data notes and working papers reach the list on the day they appear. Open access, no charge. Leave the list at any time.