After an early focus on Australian education, ACER now provides a range of services for an expanding number of international clients. ACER has official partnership with the United Nations Educational, Scientific and Cultural Organization (UNESCO). ACER collaborates with UNESCO through the UNESCO Institute for Statistics and the UNESCO Office in Bangkok on initiatives such as the development of learning assessments for reading and mathematics, and associated tools and methodologies, that countries can use to monitor learning outcomes to inform educational policy. ACER also works with organisations such as UNICEF, the World Bank, the Australian Department of Foreign Affairs and Trade, the Indian Central Board of Secondary Education and the United Kingdom Department for International Development, contributing to educational evaluation and reform in a number of countries. ACER is involved in the South East Asia Primary Learning Metrics (SEA-PLM) project, which assesses reading, writing, maths and global citizenship in Grade 5 students in the ASEAN region, in collaboration with the South East Asian Ministers of Education Organisation (SEAMEO) and UNICEF. ACER research covers: ACER's research work has contributed to policy pertaining to Australian education, including learning progressions, the role of parents, the role of arts in education, teachers and school leaders, post-school education and training, tertiary students' engagement to equity in education. A consortium led by ACER coordinated the OECD
Programme for International Student Assessment (PISA), an international assessment of reading, mathematics and science, from 1997 until 2015. The OECD appointed ACER to lead the development and implementation of the PISA 2025 across more than 90 countries and economies, working with partners TAO, cApStAn and HallStat. ACER was engaged by the OECD to lead the first ever Assessment of Higher Education Learning Outcomes (AHELO) and to develop all of the new literacy tasks for the Programme of International Assessment of Adult Competencies. ACER is also responsible for co-ordinating Australia's participation in the
International Association for the Evaluation of Educational Achievement's
Trends in International Mathematics and Science Study and
Progress in International Reading Literacy Study. ACER has been involved in many other significant international studies and is a founding member of the Asia Pacific Educational Research Association (APERA) which links educational research organisations across the region. In addition to research, ACER administers testing programs for scholarship selection, university entrance, psychologists and human resource management, some of which are delivered online. Tests, books and other materials are also published and sold through ACER Press for the education, psychology, human resources, special needs and speech pathology markets. ACER offers a Masters-level unit in Understanding Rasch Measurement Theory. ACER also manages an annual research conference held in Australia each year. ==Well-known tests==