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Methodology used to produce our provisional long-term international migration estimates.
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An explanation of the methods used to produce the latest provisional statistics on migration flows into and out of the UK.
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Quality and Methodology Information for the Opinions and Lifestyle Survey (OPN), including strengths and limitations, recent improvements and quality characteristics.
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Evaluation of questions to measure domestic abuse in the Crime Survey for England and Wales.
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Response rates, sample size and quality assessment of our quarterly Labour Force Survey.
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How the ONS uses detailed statistical methods and analytical tools to assess the impact of residual seasonality on published time series.
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Quality and methods information for the UK health accounts.
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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.
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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.
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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.
