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Participating Countries
This tables provides a summary of participation in international large-scale studies since 1994. This table does not indicate how many times a country or education system participated in a study if they participated more than twice. For details on how many times a country or education system participated, see the individual participating country lists for individual studies
= Indicates participation in the study more than once.
= Indicates participation in the study only one time.
  Study
PIRLS ePIRLS TIMSS ICILS CivEd ICCS PISA IALS ALL PIAAC TALIS
Grade 4 Grade 8 Advanced
First administered:   2001 2016   1995 1995 1995   2013   1999 2009   2000   1994 2003 2012   2008
Most recent administration:   2016 2016   2019 2019 2015   2018   1999 2016   2018   1998 2008 2017   2018
Number of cycles:   4 1   6 7 3   2   1 2   7   1 1 1 1 1 1   3
Education system name:  
 
         
 
Study
PIRLS
ePIRLS
TIMSS
ICILS
CivEd
ICCS
PISA
IALS
ALL
PIAAC
TALIS
Grade 4
Grade 8
Advanced
First administered:
 
2001
2016
 
1995
1995
1995
 
2013
 
1999
2009
 
2000
 
1994
2003
2012
 
2008
Education system
Abu Dhabi-UAE  
 
         
Albania    
     
   
Alberta-CAN  
 
 
       
Algeria    
     
   
Andalusia-ESP  
           
Argentina2  
 
     
   
Armenia2    
         
Australia  
 
 
 
 
 
 
Austria  
 
   
 
 
 
Azerbaijan  
 
     
   
Bahrain  
 
         
Baku City-AZE          
   
Basque Country-ESP    
         
Belarus          
   
Belgium          
   
Belgium (Flemish)-BEL  
 
   
   
 
Belgium (French)-BEL  
 
   
     
Belize  
           
Bermuda            
 
Bosnia and Herzegovina    
     
   
Botswana  
 
         
Brazil          
   
British Columbia-CAN  
 
         
Brunei Darussalam          
   
B-S-J-G-China3          
   
Buenos Aires-ARG2  
 
 
   
   
Bulgaria  
 
   
 
   
Canada  
 
     
 
 
Chile  
 
 
 
 
 
 
Chinese Taipei-CHN  
 
   
 
   
Colombia  
 
   
 
   
Costa Rica          
   
Croatia  
 
 
 
 
   
Cyprus  
 
   
 
 
 
Czech Republic  
 
 
 
 
 
 
Denmark2  
 
 
 
 
 
 
Dominican Republic        
 
   
Dubai-UAE  
 
     
   
Ecuador            
 
Egypt  
 
         
El Salvador    
         
Eng/Afr-RSA  
           
England and Northern Ireland-UK            
 
England-GBR2  
 
   
   
 
Estonia    
   
 
 
 
Finland  
 
 
 
 
 
 
France  
 
 
   
 
 
Georgia  
 
     
   
Germany  
 
 
 
 
 
 
Ghana    
         
Greece  
 
   
 
 
 
Guatemala        
     
Himachal Pradesh-IND          
   
Honduras  
 
         
Hong Kong-CHN2  
 
 
 
 
   
Hungary  
 
   
 
 
 
Iceland  
 
     
   
Indonesia2  
 
   
 
 
 
Iran, Islamic Republic of  
 
         
Ireland  
 
   
 
 
 
Israel  
 
     
 
 
Italy2  
 
 
 
 
 
 
Japan    
     
 
 
Jordan    
     
   
Kazakhstan2  
 
 
   
 
 
Korea, Republic of    
 
 
 
 
 
Kosovo    
     
   
Kuwait  
 
         
Kyrgyz Republic          
   
Latvia  
 
   
 
   
Lebanon    
     
   
Liechtenstein        
 
   
Lithuania  
 
 
 
 
 
 
Luxembourg  
   
 
 
   
Macao-CHN  
       
   
Madrid-ESP    
         
Malaysia2    
     
   
Malta  
 
   
 
   
Maltese-MLT  
           
Mauritius          
   
Mexico2    
   
 
 
 
Miranda-VEN          
   
Moldova, Republic of  
 
     
   
Mongolia2    
         
Montenegro, Republic of    
     
   
Morocco2  
 
     
   
Moscow City, RUS  
 
 
       
Netherlands2  
 
 
 
 
 
 
New Zealand  
 
   
 
 
 
Newfoundland and Labrador-CAN      
       
North Macedonia, Republic of  
 
     
   
North Rhine-Westphalia-GER      
 
     
Northern Ireland-GBR  
 
       
 
Norway  
 
 
 
 
 
 
Nova Scotia-CAN  
           
Nuevo Leon (Northern Mexico)            
 
Oman  
 
         
Ontario-CAN  
 
 
       
Pakistan    
         
Palestinian Nat'l Auth.    
         
Panama          
   
Paraguay        
     
Peru        
 
 
 
Philippines2    
     
   
Poland  
 
 
 
 
 
 
Portugal  
 
 
 
 
   
Qatar  
 
     
   
Quebec-CAN  
 
         
Romania  
 
   
 
   
Russian Federation2  
 
 
 
 
 
 
Saudi Arabia  
 
     
   
Scotland-GBR  
 
         
Serbia    
     
   
Shanghai-CHN          
   
Singapore  
 
     
 
 
Slovak Republic  
 
 
 
 
 
 
Slovenia  
 
 
 
 
 
 
South Africa  
 
         
Spain  
 
   
 
 
 
Sweden  
 
   
 
 
 
Switzerland2    
 
 
 
 
 
Switzerland (Italian-speaking)            
 
Syrian Arab Republic    
         
Tamil Nadu-IND          
   
Thailand    
 
 
 
   
Trinidad and Tobago  
       
   
Tunisia    
     
   
Turkey  
 
 
   
 
 
Ukraine    
     
   
United Arab Emirates  
 
     
   
United Kingdom          
   
Unites States2  
 
 
 
 
 
 
Uruguay      
   
   
Vietnam          
   
Yemen2    
         
Total   78 16   88 91 25   32   28 41   92   22 11 38   54
U.S. states and territories
Alabama    
         
California    
         
Colorado    
         
Connecticut    
     
   
Florida  
 
     
   
Idaho    
         
Illinois    
         
Indiana    
         
Maryland    
         
Massachusetts    
     
   
Michigan    
         
Minnesota    
         
Missouri    
         
North Carolina    
     
   
Oregon    
         
Pennsylvania    
         
Puerto Rico          
   
South Carolina    
         
Texas    
         
Total   1 0   6 18 0   0   0 0   5   0 0 0   0
= Indicates participation in the study more than once.
= Indicates participation in the study only one time.

1 Different countries administered PIAAC, IALS, and ALL in different years. For the most part, all of these studies only conducted one round of data collection in each country to date. However, PIAAC has been administered multiple times in some countries, including the United States, in order to expand their original samples. Some of the data, particularly estimates relating to literacy, are comparable across IALS, ALL and PIAAC.

2 For one or multiple international studies, the following education systems' results were either not reported or reported separately, typically due to sampling, response rates, or other procedural problems with the data: Argentina and Philippines for TIMSS 1995 (8th-grade); Argentina and England-GBR for TIMSS 2003 (8th-grade); Argentina, Kazakhstan, and Malaysia for PISA 2015; Armenia for TIMSS 2015 (4th- and 8th-grade); Buenos Aires-ARG, Denmark, Hong Kong-CHN, Netherlands, and Switzerland for ICILS 2013; Indonesia, Italy, and Mexico for TIMSS 1995 (4th- and 8th-grade); Mongolia for TIMSS 2007 (4th-grade); Mongolia and Morocco for TIMSS 2007 (8th-grade); Russian Federation for PIAAC 2012; United States for TALIS 2013; and Yemen for TIMSS 2003 (4th-grade).

3 3B-S-J-G (China) refers to the four PISA participating China provinces: Beijing, Shanghai, Jiangsu, and Guangdong. Chinese provinces also participated in PISA 2018.

NOTE: OECD member countries are bolded. Subnational education systems are italicized.

SOURCE: International Association for the Evaluation of Educational Achievement (IEA): Civic Education Study (CivEd), International Civic and Citizenship Study (ICCS), International Computer and Information Literacy Study (ICILS), Progress in International Reading Literacy Study (PIRLS), and Trends in International Mathematics and Science Study (TIMSS). Organization for Economic Cooperation and Development (OECD): Adult Literacy and Lifeskills Survey (ALL), International Adult Literacy Survey (IALS), Program for the International Assessment of Adults Competencies (PIAAC), Program for International Student Assessment (PISA), and Teaching and Learning International Survey (TALIS).