R&D Outcomes


Chen, Yunxiao , Oka, Montonori, von Davier, Matthias
The first outcome from the IEA R&D fund call two. This report discusses the construction of scaling models for large-scale assessments in education, applying methods to PIRLS 2016 data.
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Tyack, Lillian, Khorramdel, Lale, von Davier, Matthias
The first output from IEA's R&D call one, this report assesses how to validate human rater scores for graphical responses using AI.
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