International organisations have measured adult learning participation since the 1990s, using surveys like the Adult Education Survey (AES) and the Programme for the International Assessment of Adult Competencies (PIAAC). These surveys employ a 'triadic' classification of learning activities -- formal (FAE), non-formal (NFE) and informal learning…

Little is known about which educational activities are most associated with incarcerated adults' literacy and numeracy skills. The present study examines whether informal engagement in reading, writing, and numeracy activities (e.g., reading newspapers or using calculators) is associated with incarcerated adults' literacy and numeracy skills.…

The evolving technological landscape in the digital era has a crucial influence on lifelong learning and the demand for problem-solving skills. In this paper, we identify associations between formal, non-formal and informal learning with sufficient problem-solving skills in technology-rich environments (TRE). We focus on adults' problem-solving…