Ireland scored higher than the OECD average in science in PISA 2015, with a mean score of 502 points, compared to the OECD average of 493 points. Performance in science remained stable across PISA cycles with an average score change of -0.4 score points, while performance in reading and mathematics stayed the same. Socio-economic status had an impact close to the OECD average on science performance in PISA 2015, explaining 12.7% of the variance in performance (OECD average: 12.9%). The impact of ESCS on performance in science has not changed since 2006. Gender differences in science performance were among the highest in the OECD in Ireland, with a difference between boys and girls of 11 points, compared to the average difference across the OECD of 4 points. Immigrant students make up 14.4% of the student population of 15-year-olds in Ireland, close to the OECD average of 12.5%. Unlike in many OECD countries, there was no significant performance gap in PISA 2015 between immigrant and non-immigrant students in science, with a score difference of just 8 points.
Enrolment of 3-year-olds in ECEC was lower than the OECD average in 2015, at 38.3% (OECD average: 77.8%). Pre-primary education is largely provided in private institutions, although from the age of 3 years and 2 months onwards, children are entitled to two years of free pre-primary education, which is funded through government subsidies. Special preschools also exist for children in urban disadvantaged areas (known as the Early Start programme) and for Irish Traveller children. A national curriculum is in place (Aistear) and a set of standards (Síolta) which aim to monitor the quality of education and care provision for those aged 0-6. Compulsory education in Ireland begins at age 6 and ends at age 16, shorter than the typical duration across the OECD. Students are first tracked into different educational pathways at age 15, later than the OECD average of age 14. Upper secondary education in Ireland is a two-year programme with a choice of three streams: the general Leaving Certificate programme (LC); the Leaving Certificate Vocational Programme (LCVP), which has some vocationally oriented subjects; and the Leaving Certificate Applied (LCA), which is oriented towards preparation for labour market entry. All three upper secondary programmes lead to the final award of a Leaving Certificate, although the LCA award does not provide direct access to higher education.
VET in Ireland is offered at post-secondary level through apprenticeships and traineeships, specific skills training and alternative or second-chance education. Post Leaving Certificate Courses (PLCs) form a key part of the VET offering. The majority of courses have a duration of one academic year. They offer a combination of general education, vocational training and opportunities for work experience in over 60 subject areas, with the aim of developing specific vocational skills and vocationally oriented further and higher education progression. Around 30 000 students enrol annually in PLCs.
In the OECD Survey of Adult Skills in 2012 and 2015, adult literacy scores in Ireland were 267 points, close to the OECD average of 268 points. The gap in literacy skills between older adults (age 55-65) and younger adults (age 25-34) was lower than the OECD average. The proportion of the population aged 25-64 with lower secondary education as the highest level of attainment is lower than the OECD average, with an attainment rate of 12.4% in 2016, compared to the OECD average of 14.3%. NEET rates (the proportion of those aged 18-24 that are neither employed nor in education or training) are higher than the OECD average, at 18.2% compared to the OECD average of 15.3%.