This database provides information on the expenditures and GDPs per capita of each country. Using this database, we were able to draw correlations between expenditures of a country and their test scores in 4th-grade science.
This database provides statistics of academic performances in 4th-grade science per country. We used it as an academic reflection for the countries we analyzed so we could draw correlations between academic performance and expenditures.
This database provides information regarding each country's public expenditures on education throughout the years. With this data, we were able to search for any possible correlations between spending on education and test performance.