The aim of the study is to determine the status of Turkey among OECD (Organisation for Economic Co-operation and Development) members and candidate countries through cluster and discriminant analyses according to PISA (Programme for International Student Assessment) 2009 results. The study includes 475460 fifteen year-old students from 65 countries participating in the PISA Project in 2009. According to the cluster analyses , in the first cluster, 13 countries, 9 of which are candidate countries; in the second cluster 30 countries, 5 of which are candidate countries; in the third cluster 10 countries, 5 of which are candidate countries and in the fourth cluster 12 countries, all of which are candidate countries were clustered. Turkey was clustered in the first cluster and along with Turkey, Bulgaria, Chile, Colombia, Israel, Jordan, Mexico, Dubai (UAE), Romania, Serbia, Thailand, Trinidad, and Tobago were clustered in the first cluster, too. According to the discriminant analyses, 96,9% of original grouped cases correctly classified.