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Data

Average learning-adjusted years of schooling

See all data and research on:
Global Education

What you should know about this indicator

Numeracy is defined as the ability to access, use, interpret and communicate mathematical information and ideas in order to engage in and manage the mathematical demands of a range of situations in adult life. To this end, numeracy involves managing a situation or solving a problem in a real context, by responding to mathematical content/information/ideas represented in multiple ways. The target population for the survey was the non-institutionalized population, aged 16-65 years, residing in the country at the time of data collection, irrespective of nationality, citizenship or language status. For more information, consult the OECD PIAAC website: http://www.oecd.org/site/piaac/.

World Bank variable id: LO.PIAAC.NUM

Original source: OECD Programme for the International Assessment of Adult Competencies (PIAAC)

Average learning-adjusted years of schooling
Average numeracy proficiency of adults aged 16-65.
Source
World Bank (2024) – processed by Our World in Data
Last updated
November 4, 2024
Next expected update
November 2025
Date range
2012–2015
Unit
score

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Sources and processing

This data is based on the following sources

The World Bank EdStats database offers a comprehensive array of over 8,000 internationally comparable indicators related to education access, progression, completion, literacy, teachers, demographics, and expenditures. It covers the education cycle from pre-primary to vocational and tertiary education, including data on learning outcomes from assessments like PISA, TIMSS, PIRLS, equity data from household surveys, and educational projections up to 2050.

Retrieved on
November 4, 2024
Retrieved from
https://datacatalog.worldbank.org/search/dataset/0038480/education-statistics
Citation
This is the citation of the original data obtained from the source, prior to any processing or adaptation by Our World in Data. To cite data downloaded from this page, please use the suggested citation given in Reuse This Work below.
World Bank Education Statistics (EdStats), World Bank, 2023. Licence: CC BY 4.0.

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Citations

How to cite this page

To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:

“Data Page: Average learning-adjusted years of schooling”, part of the following publication: Hannah Ritchie, Veronika Samborska, Natasha Ahuja, Esteban Ortiz-Ospina and Max Roser (2023) - “Global Education”. Data adapted from World Bank. Retrieved from https://era5-cont.owid.pages.dev/grapher/learning-adjusted-years-of-school-lays [online resource]
How to cite this data

In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:

World Bank (2024) – processed by Our World in Data

Full citation

World Bank (2024) – processed by Our World in Data. “Average learning-adjusted years of schooling” [dataset]. World Bank, “World Bank Education Statistics (EdStats)” [original data]. Retrieved March 13, 2025 from https://era5-cont.owid.pages.dev/grapher/learning-adjusted-years-of-school-lays