All methodology

  • Population statistics and sources guide

    Methodoleg | Released on 17 November 2023

    A comparison of the different types of population estimate that are published on the ONS website or planned for future publication. Includes information about whether these are official estimates of the population or used only for wider research, as well as the sources, coverage and main uses and comparability issues for the estimate.

    Allweddeiriau: census 2021, population statistics transformation

  • Public service productivity: total, UK QMI

    Methodoleg | Released on 17 November 2023

    Quality and Methodology Information for the Public service productivity releases: strengths and limitations of the data, methods used, and data uses and users.

    Allweddeiriau: data quality, public sector, output, healthcare, education

  • Long-term international migration: quality assuring administrative data

    Methodoleg | Released on 16 November 2023

    Administrative data sources and quality assurance in the production of admin-based long-term international migration estimates published in bi-annual releases.

    Allweddeiriau: admin data, quality assure, migrant, overseas, LTIM

  • Labour Force Survey performance and quality monitoring report: July to September 2023

    Methodoleg | Released on 14 November 2023

    Response rates, sample size and quality assessment of the Office for National Statistics quarterly Labour Force Survey.

    Allweddeiriau: Response rates, LFS, sample size, non-response

  • Regional consumer card spending trends QMI

    Methodoleg | Released on 6 November 2023

    Quality and methodology information for regional consumer card spending data 2019 to 2023 derived from aggregated and anonymised Visa card spending data.

    Allweddeiriau: subnational, regional, consumer, retail, credit card, debit card

  • Estimates of UK quarterly greenhouse gas emissions (residence basis) QMI

    Methodoleg | Released on 3 November 2023

    Quality and Methodology Information for experimental estimates of UK quarterly greenhouse gas emissions, detailing methods used, data it provides, and strengths and limitations

    Allweddeiriau: Carbon dioxide, Climate change, Beyond GDP, Environment

  • Profitability of UK companies QMI

    Methodoleg | Released on 3 November 2023

    Quality and Methodology Information for Profitability of UK companies: data strengths and limitations, methods, and data uses and users.

    Allweddeiriau: data quality, services, PNFC, manufacturing, UK continental shelf

  • Labour Force Survey: planned improvements and its reintroduction

    Methodoleg | Released on 2 November 2023

    Planned data collection and methodological improvements to address quality concerns with Labour Force Survey estimates.

    Allweddeiriau: LFS, TLFS, labour market, employment

  • Sexual orientation and gender identity quality information for Census 2021

    Methodoleg | Released on 1 November 2023

    Known quality information affecting sexual orientation and gender identity data from Census 2021 in England and Wales to help users correctly interpret the statistics.

    Allweddeiriau: sexual orientation, gender identity, quality, census

  • Foreign direct investment, UK inward network methodology

    Methodoleg | Released on 30 October 2023

    Experimental statistics exploring how foreign direct investment into UK companies moves through different regions to reach its final recipient.

    Allweddeiriau: onward, FDI, regional