New Zealand scored among the highest in the OECD in PISA 2015, with a mean score of 513 points, compared to the OECD average of 493 points. Performance in science has declined across PISA cycles by 17 points between PISA 2006 and PISA 2015, and performance in reading and mathematics has also decreased. Socio-economic status had a higher-than-average impact on science performance in PISA 2015, explaining 13.6% of the variance in performance (OECD average: 12.9%). The impact of ESCS on performance in science has not changed since 2006. There was no significant gender difference in science performance in PISA 2015. Immigrant students make up 27.1% of the student population of 15-year-olds in New Zealand, a proportion which is among the highest in the OECD (OECD average: 12.5%). Unlike many OECD countries, New Zealand had no significant performance gap in PISA 2015 between immigrant and non-immigrant students in science, with a score difference of only 6 points.
Enrolment of 3-year-olds in ECEC and pre-primary education was higher than the OECD average in 2015, at 89.4%, (OECD average: 77.8%). Children typically begin early childhood education at age 3, in a programme that lasts two years. A national set of standards for the provision of education and care (Te Whāriki) is in place for 0-5 year-olds. Education-only programmes do not exist nationally. Integrated programmes do exist nationally and have a formal curriculum in place that is delivered by qualified teachers. Compulsory education begins at age 6 and ends at age 16, similar to the typical duration across the OECD. Students are first tracked into different educational pathways at age 16, later than the OECD average of age 14. At age 16 (Year 11), students have flexibility to choose subjects of the National Certificate of Educational Achievement (NCEA) based on their interest and ability. Achieving NCEA 3 level of qualifications provides access to post-secondary or tertiary education, as does passing exams or direct entry after age 21.
VET offers various options in post-compulsory education. The New Zealand Qualifications Framework (NZQF) allows students to earn credits towards vocational qualifications in both schooling and tertiary contexts. Upper secondary students can explore vocational courses in an integrated general academic programme. Students in tertiary education can study vocational programmes at 16 institutes of technology and polytechnics, three Māori tertiary institutions (wānanga), and private training establishments.
In the OECD Survey of Adult Skills in 2012 and 2015, adult literacy scores in New Zealand were among the highest in the OECD, at 281 points, compared 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 among the highest in the OECD, with an attainment rate of 23.4% 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 lower than the OECD average, at 12.6%, compared to the OECD average of 15.3%. The percentage of the population aged 25-34 with a tertiary-level qualification is close to the OECD average, at 43.4% in 2016, compared to the OECD average of 43.1%. Employment rates for 25-34 year-olds with tertiary education are higher than the OECD average. In 2016, 86.2% were employed, while the OECD average rate was 82.9%.