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Schedule and Plans
Each of the international large-scale studies has its own project schedule and cycle, but all have a field test, main data collection, and release of results. This calendar of IAP studies provides an overview of each study’s schedule and plans across the next 4 years.
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Field Test. As part of the development of each study, a field test is conducted to evaluate the study in two areas: (a) its assessment and background questions; and (b) its data collection operations, procedures, and equipment. Based on the results of the field test, any questions that are found to be problematic are dropped or fixed, and operational challenges that are uncovered are addressed in preparation for the main data collection.
Data Collection. The administration of each international assessment or survey is known as the "main study data collection." Each study has its own required timeframe during which data must be collected to be internationally comparable.
Release of Results. After each international assessment or survey is administered, the data are checked, compiled, and prepared for analyses, which include deriving variables, creating indexes, and calculating weights and plausible values. Once these steps have been completed, the data are analyzed and the results are compiled in a report. It typically takes 18 to 24 months from the data collection to the release of the international results.
Learn more about each study’s schedule and plans:
The current schedule for PISA 2018 is as follows:
- Spring 2017: PISA 2018 field trial
- Fall 2018: PISA 2018 main study data collection
- December 2019 (tentative): PISA 2018 reading, science, and mathematics data released
- May 2020 (tentative): PISA 2018 financial literacy data released
The schedule for PIRLS 2016 was as follows:
- Spring 2016: Data collection in schools across the United States
- Summer 2016: Data scoring and coding
- Fall 2016: Initial data submission to the IEA
- Winter 2016: Data review and cleaning
- Spring 2017: Data calibration, scaling, and weighting
- Summer 2017: Data review by participating countries
- December 2017: Data release
The current schedule for ICILS 2018 is as follows:
- March 2015: First meeting of the National Research Coordinators
- Ongoing in 2015: Framework and instrument development
- Spring 2016: Pilot of survey instruments in selected countries
- Fall 2016: Finalization of field trial instruments
- Spring 2017:Field trial data collection
- Fall 2017: Finalization of main survey instruments
- Spring 2018: Main survey data collection
- November 2019: International release
The current schedule for TALIS 2018 is as follows:
- May 2016: Pilot Study
- February 2017: Field Trial
- March - May 2018: Main Survey
- January - June 2019: Analysis and Reporting
The current schedule for TIMSS 2019 is as follows:
- Spring 2017: TIMSS pilot data collection in schools across the United States
- Spring 2018: TIMSS field test data collection in schools across the United States
- Spring 2019: TIMSS 2019 main study data collection in schools across the United States
- Fall 2020: TIMSS 2019 data release
The current schedule for PIAAC 2018 is as follows:
Cycle 1
- 2012: U.S. Round 1 Data Collection (including 23 other countries)
- 2014: U.S. Round 2 Data Collection (including 9 additional countries)
- 2017: U.S. Round 3 Data Collection
Cycle 2
- 2021: U.S. Data Collection (including more than 35 other countries)
The future schedule for U.S. PIAAC products is as follows:
- Fall 2019: U.S. PIAAC First Look Report
- Spring 2020: PIAAC U.S. Small Area Estimate Results
