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Desjardins, Richard; Warnke, Arne Jonas – OECD Publishing (NJ1), 2012
The relationship between ageing and skills is becoming an important policy issue, not least in the context of population ageing. Data from the Programme for the International Assessment of Adult Competencies (PIAAC) will potentially add considerably to the understanding of the relationship between ageing and foundation skills. In particular, the…
Descriptors: Multivariate Analysis, Foreign Countries, Profiles, Adult Literacy

Miller, Paul; Mulvey, Charles; Martin, Nick – Economics of Education Review, 2001
Data from a large sample of Australian twins indicate that 50 to 65 percent of variance in educational attainments can be attributed to genetic endowments. Only about 25 to 40 percent may be due to environmental factors, depending on adjustments for measurement error and assortative mating. (Contains 51 references.) (MLH)
Descriptors: Educational Attainment, Elementary Secondary Education, Environmental Influences, Foreign Countries