PISA Computer-Based Assessment of Student Skills in Science

Annex A. Sampling information

DOI:https://dx.doi.org/10.1787/9789264082038-10-en

The decision to impute plausible values on the CBAS scale for students in CBAS participating schools that participated only in PISA paper-and-pencil test was made by data analysts of the Consortium (Westat and ACER). The quality of imputing missing ...



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