International Data Explorer

Explore student and adult performance on international assessments
Explore survey questionnaire results for thousands of variables
Find data for the United States and more than 80 other national and subnational education systems

Create tables, charts, and maps
Display averages, percentages, standard deviations, percentiles, and performance levels

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Create your own analyses and explore the results from international studies...

Program for International Student Assessment (PISA)

Target Population

15-year-old students

Subjects

Reading literacy
Mathematics literacy
Science literacy
Problem solving
Collaborative problem solving
Financial literacy

Questionnaires

Student Questionnaire:

Student background/demographic characteristics
Home educational resources
Self-perceptions, beliefs, and attitudes about learning
Perceptions of teaching and instructional experiences
School climate and safety

School Questionnaire:

Policies and practices
Instructional time
School resources and technology
School climate and safety
School enrollment and characteristics

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

Progress in International Reading Literacy Study (PIRLS)

Target Population

4th-graders

Subjects

PIRLS
- Reading
ePIRLS
- Online Reading

Questionnaires

Student Questionnaire:

Student background/demographic characteristics
Home educational resources
Self-perceptions, beliefs, and attitudes about learning
Perceptions of teaching and instructional experiences
School climate and safety

ePIRLS Student Questionnaire:

Student computer use
Self-perceptions about computer proficiency

School Questionnaire:

Policies and practices
Instructional time
School resources and technology
School climate and safety
School enrollment and characteristics

Teacher Questionnaire:

Teacher background and professional preparation
Attitudes/beliefs about teaching/learning
Instructional time and practices
Teacher collaboration
Professional development
School climate and safety

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

Trends in International Mathematics and Science Study (TIMSS)

Target Population

TIMSS: 4th- and 8th-graders

TIMSS Advanced: students at the end of high school

Subjects

TIMSS:
- Mathematics
- Science
TIMSS Advanced:
- Advanced Mathematics
- Physics

Questionnaires

Student Questionnaire:

Student background/demographic characteristics
Student activities outside of school
Self-perceptions, beliefs, and attitudes about learning
School climate and safety

School Questionnaire:

Principal experience
School enrollment and characteristics
Size of staff
School resources and technology
School attendance and tardiness
Instructional time
School emphasis on academic success
School climate, safety, and student behaviors

Teacher Questionnaire:

Teacher background and professional preparation
Perceptions about teaching/learning
Instructional time and topics taught
Classroom characteristics
Teacher preparation and collaboration
Teacher activities outside of school
Role of homework
School emphasis on academic success
School climate and safety

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

Program for the International Assessment of Adult Competencies (PIAAC)

Target Population

Adults in households ages 16-65 (international)
U.S. Adults in households ages 16-74
U.S. Adults in prison ages 16-74

Subjects

Literacy
Numeracy
Problem solving in technology-rich environments

Questionnaires

Household Background Questionnaire:

Educational background
Workplace experiences and skills
Occupational attainment
Skill use (reading, writing, math and ICT) at work and in everyday life
English language learners' skills (speaking, reading and writing)
Civic participation
Health behaviors and practices

Prison Background Questionnaire:

Educational background and education in prison
Non-academic programs, training, and other activities in prison
Workplace experiences and skills prior to incarceration and in prison
Skill use (reading, writing, math and ICT) at work prior to incarceration and in prison
Skill use (reading, writing, math and ICT) in everyday life in prison

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

Teaching and Learning International Survey (TALIS)

Target Population

Teachers and principals

Subjects

TALIS is an international study of teachers, teaching, and learning environments. It does not include student assessment data.

Questionnaires

Teacher Questionnaire:

Characteristics of teachers and their schools
Induction, mentoring, and professional development
Teacher appraisal and feedback
Teacher practices and classroom environments
Teacher self-efficacy and job satisfaction

Principal Questionnaire:

Characteristics of principals and their schools
School leadership
Induction, mentoring, and professional development
Teacher appraisal and feedback
School climate
Principal job satisfaction

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

International Computer and Information Literacy Study (ICILS)

Target Population

8th-graders

Subjects

Computer and information literacy (CIL)
Computational thinking (CT)

Questionnaires

Student Questionnaire:

Student background/demographic characteristics
Frequency of ICT use for different purposes
Use and learning of ICT at school
Student views about the use of ICT

Teacher Questionnaire:

Teacher background and familiarity with ICT
Teacher use of ICT in teaching a reference eighth-grade class
Learning to use ICT in teaching
View of ICT resources at school

Principal Questionnaire:

Characteristics of the school
Principal use of ICT
Application of ICT in teaching and learning at school
Management of ICT in school

ICT Coordinator Questionnaire:

Position of ICT coordinator
ICT resources at school
ICT support at school

Need help or have suggestions?

Watch these tutorial videos from the IEA-ETS Research Institute for a full walkthrough of the IDE tool, using TIMSS, PIRLS, and PIAAC as an example.

View the IDE Brochure for a general overview of how to use the IDE tool.

View the help guide for further details on using the IDEs, or use the Help Button available on the top of every page of the tool.

Find out more about the international studies and access public-use data files at IAP Publications and Products.

We welcome your suggestions on how to improve the IDE. Please send an e-mail to NCESinternational@ed.gov.

System requirements

Target screen resolution is 1024 x 768.
Microsoft Edge.
Firefox.
Google Chrome.
Apple Safari.
Enable JavaScript and pop-ups in your browser.

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