The Economist – A survey by the OECD suggests so – “Are you smarter than a ten-year-old? New data suggest that a shockingly large portion of adults in the rich world might not be. Roughly one-fifth of people aged 16 to 65 perform no better in tests of maths and reading than would be expected of a pupil coming to the end of their time at primary school, according to a study released on December 10th by the OECD, a club of mostly rich countries. Worse still, adults in many places have grown less literate over the past ten years.”

OECD – Adult skills in literacy and numeracy declining or stagnating in most OECD countries – The latest Survey of Adult Skills highlights a mixed global picture of literacy, numeracy and adaptive problem solving proficiency. Finland, Japan, the Netherlands, Norway and Sweden excel in all these areas, with significant proportions of their adult populations demonstrating advanced abilities. However, on average across OECD countries, 18% of adults do not even have the most basic levels of proficiency in any of the domains. Thirty-one countries and economies participated in the 2023 Survey of Adult Skills. The survey, a product of the OECD Programme for the International Assessment of Adult Competencies (PIAAC), provides a comprehensive overview of adults’ literacy, numeracy, and adaptive problem solving skills – skills that are fundamental for personal, economic, and societal development.