Certifiable method
Figures anyone can check
We announce our studies before launching them, have them reviewed by an independent committee, weight samples to the census and publish our margins of error.
Protocol registry
Every major study is described and frozen before fieldwork: objectives, hypotheses, sample, analysis plan. Any later change is published as an amendment.
Browse the registryScientific committee
Independent researchers and statisticians review our final publications and give a public opinion.
Meet the committeeWeighting and margins of error
Answers are weighted to reflect the population (gender, age, region) and every percentage comes with its 95% confidence interval.
See the resultsOpen microdata
Anonymised individual responses (k-anonymity, k = 5) are released under an open licence for re-analysis.
Open dataField-based comparators
Real fees, data plans and service quality measured by our mystery shoppers.
Open the comparators