The 2015 Program for International Student Assessment (PISA:15) is a study that is part of the Program for International Student Assessment (PISA) program; program data are available since 2000 at https://nces.ed.gov/pubsearch/getpubcats.asp?sid=098. PISA:15 (https://nces.ed.gov/surveys/pisa/) is a cross-sectional study that measures the yield of education systems, or what skills and competencies students have acquired and can apply in reading, mathematics, and science to real-world contexts by age 15. For PISA:15, science was the subject area assessed in-depth. The study was conducted using questionnaires and direct assessments of 15-year-old students. Key statistics produced from PISA:15 are 15-year-olds' capabilities in reading, mathematics, and science literacy.
