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Schedule and Plans

The current schedule for TIMSS 2015 is as follows:

  • Spring 2015: data collection in schools across the United States
  • Summer 2015: data scoring and coding
  • Fall 2015: initial data submission to the IEA
  • Winter 2015: initial data review and cleaning
  • Spring 2016: data calibration, scaling, and weighting
  • Summer 2016: data review by participating countries
  • November 29, 2016: data release

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National Center for Education Statistics -
U.S. Department of Education