TIMSS 2015 was the sixth cycle of the IEA Trends in International Mathematics and Science Study (TIMSS). The study was initiated in February 2013 at the first national research coordinators meeting. Framework and instrument development work was carried out in 2013. The field test was conducted in March–April 2014. The data collection for the main survey was carried out in August 2015. The international reports were released in December 2016, followed by the international database and user guide in February 2017.
The following education systems participated in this round of TIMSS:
| Argentina (Buenos Aires) |
Hong Kong SAR |
|
Norway |
| Armenia |
Hungary |
|
Oman |
| Australia |
Indonesia |
|
Palestine |
| Bahrain |
Iran |
|
Poland |
| Belgium (Flemish) |
Ireland |
|
Portugal |
| Botswana |
Israel |
|
Qatar |
| Bulgaria |
Italy |
|
Russian Federation |
| Canada (with Ontario and Quebec as benchmarking systems) |
Japan |
|
Saudi Arabia |
| Chile |
Jordan |
|
Serbia |
| Chinese Taipei |
Kazakhstan |
|
Singapore |
| Croatia |
Korea |
|
Slovak Republic |
| Cyprus, |
Kuwait |
|
Slovenia |
| Czech Republic |
Lebanon |
|
South Africa |
| Denmark |
Lithuania |
|
Spain |
| Egypt |
Malaysia |
|
Sweden |
| England |
Malta |
|
Thailand |
| Finland |
Morocco |
|
Turkey |
| France |
Netherlands |
|
United Arab Emirates (with Abu Dhabi and Dubai as benchmarking systems) |
| Georgia |
New Zealand |
|
United States (with Florida as a benchmarking system) |
| Germany |
Northern Ireland |
|
|
|
