| AI | Artificial intelligence |
| APS | Adaptive Problem Solving |
| CI | Confidence interval |
| EFTA | European Free Trade Association |
| EU | European Union |
| ICT | Information and communication technologies |
| ILO | International Labour Organisation |
| ISCED | International Standard Classification of Education |
| ISCO | International Standard Classification of Occupations |
| PIAAC | Programme for the International Assessment of Adult Competencies |
| PISA | Programme for International Student Assessment |
| p.p. | Percentage points |
| p.p. dif. | Percentage-point difference |
| PPP | Purchasing power parity |
| Score dif. | Score-point difference |
| S.D. | Standard deviation |
| S.E. | Standard error |
| STEM | Science, technology, engineering or mathematics |
| USD | US Dollar |
Do Adults Have the Skills They Need to Thrive in a Changing World?
Survey of Adult Skills 2023
OECD Skills Studies
