|Table PS2. Average scores of 15-year-old students on PISA problem solving scale, by education system: 2012|
|Education system||Average score||s.e.||Education system||Average score||s.e.|
|OECD average (PS)||500||0.7|
|Korea, Republic of||561||4.3||Portugal||494||3.6|
|Hong Kong-China||540||3.9||Slovak Republic||483||3.6|
|Australia||523||1.9||Serbia, Republic of||473||3.1|
|United States||508||3.9||United Arab Emirates||411||2.8|
|Belgium||508||2.5||Montenegro, Republic of||407||1.2|
| Average score is higher than U.S. average score.
Average score is lower than U.S. average score.
NOTE: Education systems are ordered by 2012 average score. The OECD average (PS) is the average of the national percentages of the 28 OECD member countries that participated in the problem solving (PS) assessment, with each country weighted equally. The following OECD countries did not participate in the problem solving assessment: Greece, Iceland, Luxembourg, Mexico, New Zealand, and Switzerland. Scores are reported on a scale from 0 to 1,000. All average scores reported as higher or lower than the U.S. average score are different at the .05 level of statistical significance. Standard error is noted by s.e. Italics indicate non-OECD countries and education systems.
SOURCE: Organization for Economic Cooperation and Development (OECD), Program for International Student Assessment (PISA), 2012.