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We moved them to The National Archives website, to keep this website as responsive as possible.
Please note: all historical data is still on this website.
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Quality and Methodology Information for the Opinions and Lifestyle Survey (OPN), including strengths and limitations, recent improvements and quality characteristics.
Evaluation of questions to measure domestic abuse in the Crime Survey for England and Wales.
Response rates, sample size and quality assessment of our quarterly Labour Force Survey.
How the ONS uses detailed statistical methods and analytical tools to assess the impact of residual seasonality on published time series.
Quality and methods information for the UK health accounts.
Quality and methodology information for our UK natural capital accounts, detailing the strengths and limitations of the data, methods used, and data uses and users.
From 2026, we intend to introduce grocery scanner data into our consumer price statistics. This methodology article gives an overview of the data and methods we will use.
Quality and Methodology Information for avoidable mortality in the UK, detailing the strengths and limitations of these data, methods used and data uses and users.
Summary of labour market datasets, providing estimates of employment, unemployment, average weekly earnings and the number of vacancies. Tables are listed alphabetically and by topic.
