Background: In Germany, three large-scale surveys--the Level One Study (LEO), the Programme for the International Assessment of Adult Competencies (PIAAC), and the National Educational Panel Study (NEPS)--provide complementary data on adults' literacy skills that can be harnessed to study adults with low literacy. To ensure that research on…

School socio-economic compositional (SEC) effects have been influential in educational research predicting a range of outcomes and influencing public policy. However, some recent studies have challenged the veracity of SEC effects when applying residualised-change and fixed effects models and simulating potential measurement errors in hierarchical…

This study explores various measures of the ethnic makeup in a classroom and their relationship with student outcomes. We examine whether measures of ethnic diversity are related to achievement (mathematics, reading) and feeling of belonging with one's peers over and above commonly investigated composition characteristics. Multilevel analyses were…

This paper explores the PISA [Programme for International Student Assessment] achievement of twenty countries in light of some of their demographic differences. SES [student socioeconomic status], nuclear family, gender, home language, and native status were predictive of achievement for every country. Demographics accounted for as little as 8…

Aims: Describing alcohol use by abuse type (e.g. psychological) and considering other factors (e.g. depression). Methods: The respondents were 4467 (2559 women, 57.3%) randomly selected elders (60-84 years) from seven European cities. The cross-sectional data were collected with scales covering various areas and examined with…