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Dataset | 15 January 2021

PIAAC (Programme for the International Assessment of Adult Competencies)

The Programme for the International Assessment of Adult Competencies (PIAAC) developed and conducted the Survey of Adult Skills. The survey measures adults’ proficiency in key information-processing skills - literacy; numeracy and problem solving in technology-rich environments - and gathers information and data on how adults use their skills at home; at work and in the wider community.

Twenty-four countries participated in Round 1 of the Survey of Adult Skills (PIAAC) with data collection taking place from 1 August 2011 to 31 March 2012 in most countries. Nine countries took part in the second Round of the assessment with data collection taking place from April 2014 to end-March 2015.

In total; around 250 000 adults; representing 815 million adults aged 16 to 65 were surveyed in 33 countries/economies in the official language(s) of the countries in the two rounds of the study.

For any queries; please contact edu.piaac@oecd.org

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